Education & Training

  • International School on Powder Diffraction October 7 - 10, 1998

    International Union of Crystallography

    Indian Association for the Cultivation of Science, Kolkatta

  • ‘The Training Course' October 13 – 16, 2002

    ‘The Training Course for Potential Users of TRIGA Research Reactor Facility of BAEC’

    INST, AERE, Savar, Dhaka

  • EPR Technique and Its Uses March 17 - 25, 2016

    "Training Program on Electron Paramagnetic Resonance (EPR) Technique and Its Uses"

    Department of Geology, University of Saskatchewan, Canada

  • Visiting Researcher March 1 ~ April 7, 2011

    Department of Physics and Engineering Physics

    University of Saskatchewan, Canada

  • Visiting Professor June 2012- September 2015

    Department of Chemical and Biological Engineering

    University of Saskatchewan, Canada

  • Post Doc Research June 2000 ~ June 2001

    ICTP Fellowship

    Crystal Growth Center, Anna University, Madras, India

  • International School on Crystal Growth Methods and Processes January 24 - February 4, 2000

    Crystal Growth Center

    Anna University, India

  • DST- Govt. of India, Fellowship January 1993 - July 1993

    Crystal Growth Center

    Anna University, India

  • International School on Advanced Electronic Materials February 6 - 15, 1995

    Crystal Growth Center

    Anna University, India

  • 'SAARC Short Course on Technology Assessment & Technology Diffusion' December 18 - 24, 1994

    Ministry of Science & Technology, Govt. of Bangladesh

    Institute of Appropriate Technology-BUET, Dhaka

  • Post Doc Research August 2003 to July 2005

    JSPS- Fellowship (Japan Society for the Promotion of Science)

    Department of Electrical and Computer Engineering, Nagoya Institute of Technology, Japan

  • The 12th International Summer School on Crystal Growth (ISSCG-12) August 1 to 7, 2004

    Under the support of The German DGKK (Deutsche Gesellschaft fur Kristallzüchtung und Kristallwachstum)

    Berlin, Germany

  • Visiting Faculty 2- 21 September, 2019

    Under the Erasmus International Credit Mobility Program between BUET and University of Limerick.

    The Bernal Institute, University of Limerick, Ireland

  • Ph.D 1995

    Condensed Matter Physics

    Bangladesh University of Engineering and Technology & Anna University (India) linkage program.

  • M.Phil 1987

    Condensed Matter Physics

    Bangladesh University of Engineering and Technology

  • M.Sc 1981

    Experimental Solid State Physics

    University of Dhaka, Bangladesh

  • B.Sc 1980

    Honors in Physics

    Under the University of Dhaka, Bangladesh

Honors, Awards and Grants

  • 2018
    Life Time Achievement Award
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    By The AMET and Indian Spectro Physics Association, 2018, India.

  • 2016
    ICRAAS-2016' Award
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    By The Indian Spectro Physics Association and St. Peters University, India

  • 2003-2005
    JSPS Fellowship
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    JSPS Invitation Fellowship and NEDO Fellowship, Japan

  • 2001
    Young Scientist Award
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    By ICCG-13 and ICVGE-11-2001, Japan

  • 2000
    ICTP Fellowship
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    International Centre for Theoretical Physics), 2000, Italy

  • 1998
    BAAS Award'1998
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    Best Research Presentation by the Bangladesh Association for the Advancement of Science

  • 1991
    BAAS Award'1991
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    Best Research Presentation by the Bangladesh Association for the Advancement of Science

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Influence of substrate temperature on the morphological, structural, optical and electrical properties of nanostructured CuO thin films synthesized by spray pyrolysis technique

P. DATTA, M. SHARMIN, J. PODDER, S. CHOUDHURY

Abstract

Nanostructured copper oxide (CuO) thin films have been synthesized onto the glass substrates from aqueous solutions of copper (II) acetate monohydrate precursor salt by a cost effective spray pyrolysis technique at various substrate temperatures between 473 and 673 K. The effects of varying substrate temperature on the structure, surface morphology, optical and electrical properties of the synthesized CuO thin films were studied. Scanning Electron Microscopic (SEM) images revealed agglomerated nanoparticles on the surface of CuO thin films. X-Ray Diffraction (XRD) analysis revealed monoclinic structure with the predominant (̅111) orientation of the synthesized films. Crystallite size increased (9.15 to 10.29 nm) with the increase of substrate temperature. In UV-vis-NIR spectroscopy, CuO thin films showed higher transparency in the NIR region. An optical band gap of CuO thin film was found in the range of 2.04 - 2.49 eV. Transmittance and band gap decreased with the increase of substrate temperature up to 573 K and found to increase at 673 K. On the other hand, extinction coefficient and refractive index increased with the increase of substrate temperature up to 573 K and decreased afterwards. Electrical resistivity of CuO thin films was found in the range 1.16 ×103 - 4.61 ×103 Ω-m and decreased with the increment of the substrate temperature up to 573 K. Activation energies of CuO thin film were found in the range 0.08 - 0.57 eV. Hence, we report the influence of substrate temperature for the synthesis of nanostructured CuO thin films, best fit for optoelectronic applications.

Bond length controlling opto-structural properties of Mn doped CuO thin films: An experimental and theoretical study

M.H. Babu, J. Podder

Abstract

In this paper, we present a detailed study of the opto-structural properties of Mn doped CuO (MCO) thin films with 0.0, 2.0, 4.0, 6.0 and 8.0 at.% doping concentrations, using a thermal spray pyrolysis technique as well as Density Functional Theory (DFT) calculations for the first time. The experimental characterizations are done through Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-rays spectroscopy (EDX), Xray diffraction (XRD), UV–Visible spectroscopy (UV–Vis) and Hall Effect measurement. FESEM images show the petal-like and closed packed flower-like spherical structure surface morphology. EDAX spectra confirm the presence of Cu, O and Mn atoms. The XRD pattern reveals that synthesize thin films have a monoclinic structure with some impurity phases. The estimation of crystallite size ranging from 17.11 to 31.96 nm observed using Debye-Scherrer and Halder-Wagner method. The Cu–O bond length is found consistent between the Rietveld refinement and DFT function, which controls the experimental optical band gap in between 3.00 to 2.31 eV. Further, a standard value of Urbach energy, steepness parameter, electron–phonon interaction, refractive index, dielectric constant and static dielectric constant is found in 4.0 at. % Mn dopant. Moreover, p to n-type conductivity is confirmed by 4.0 at. % Mn concentration. By a meticulous analysis, it is observed that 4.0 at. % of MCO thin films might have a potential application in electronic and optoelectronic device industry.

Pressure induced semiconductor to metal phase transition in cubic CsSnBr3 perovskite

Md. Sajib Hossain, Md. Majibul Haque Babu, Tusar Saha, Md. Sazzad Hossain, Jiban Podder, Md. Shohel Rana, Abdul Barik, and Protima Rani

Abstract

Phase transitions in metal halide perovskites triggered by external provocations produce significantly different material properties, providing a prodigious opportunity for comprehensive applications. In the present study, the first principles calculation has been performed with the help of density functional theory using the Cambridge Serial Total Energy Package code to investigate the physical properties of lead-free CsSnBr3 metal halides under various hydrostatic pressures. The effect of pressure is determined in the range of 0–28 GPa by the generalized gradient approximation and Becke, three-parameter, Lee–Yang–Parr functions. Subsequently, a significant change is observed in the lattice constant and volume with increasing pressure. The electronic band structure shows a semiconductor to metal phase transition under elevated pressure. The investigation of optical functions shows that the absorption edge of the CsSnBr3 perovskite is shifted remarkably toward the low energy region (red shift) with improved pressure up to 16 GPa. In addition, the absorptivity and dielectric constant also upsurge with the applied hydrostatic pressure. Finally, the mechanical properties reveal the fact that the CsSnBr3 perovskite is mechanically stable and highly
ductile; the ductility is increased with increasing pressure. This type of semiconductor to metal phase transition may inspire a wide range of potential  applications.

Synthesis, growth, supramolecularity and antibacterial efficacy of 3,4-dimethoxybenzoic acid single crystals

Archana Rajendran, Suresh Sagadevan, J. Anita Lett , Gobi Saravanan Kaliaraj, Is Fatimah, Faruq Mohammad, Hamad A. Al-Lohedan, Solhe F. Alshahateet, Jiban Podder

Abstract

In this paper, we have investigated the antibacterial potentials of organic single crystals, 3,4-dimethoxybenzoic acid (DMBA) grown by the slow evaporation solution growth technique. The crystallinity and structural orientation of as-grown DMBA compound was thoroughly studied using single-crystal X-ray diffraction and powder Xray diffraction (XRD) and found to be a triclinic crystal system with P1 space group. The Fourier transform infrared spectroscopy was used to understand the nature of bonding and functionalization, while the UV–Vis spectroscopic analysis provided the linear optical properties at the lower cutoff wavelength of 350 nm and transparency of 87%. Also, the photoluminescence spectrum shows the ultraviolet emission of the DMBA single crystal. Further, the antibacterial efficacy of DMBA crystals is investigated by means of percentage (%) inhibition and zone of inhibition (ZoI) against the two different bacterial stains of Klebsiella pneumoniae and Staphylococcus aureus. The results confirmed that the DMBA compound has higher activity against Staphylococcus aureus growth (75% inhibition efficiency and 5 mm ZoI at 100 μg/mL) than that of Klebsiella pneumoniae (55% inhibition and 2 mm ZoI at 100 μg/mL) and thereby providing evidence for the potential role of the DMBA compound in future medicinal drugs.

Band gap tuning of p-type al-doped tio2 thin films for gas sensing applications

Mohammad Nurul Islam, Jiban Podder, Khandker Saadat Hossain, Suresh Sagadevan

Abstract

Transparent conducting titanium dioxide (TiO2) thin films were synthesized by a spray pyrolysis technique. In this work, the effect of Al doping on the structural, morphological, topographical, optical, and electronic properties of TiO2 thin film samples was studied in detail. The deposited film shows 66 nm to 82 nm nanostructured crystallite size. The cell parameters are found in good agreement with the experimental and theoretical calculations. The pore diameters are found to be between 6 nm and 9 nm as revealed by the field emission scanning electron microscopy images. The energy dispersive X-ray analysis, spectra show that all the samples are in stoichiometric conditions. Atomic force microscope images show that the surface roughness varies from 34.72 nm to 89.83 nm. The bandgap tuning has been observed both experimentally and theoretically. The study of optical properties shows that the absorption limit of the Al-doped TiO2 sample is shifted towards the lower energy region compared with the un-doped sample. The electrical band structure energy (3.11 to 3.64 eV) values are much closer to those of the optical band structure energy (3.18 to 3.01 eV for indirect and 3.70 to 3.49 eV for direct). The charge density map ensures that the covalent bond is present in the as-deposited sample. A combined analysis of the structural, morphological, topographical, optical, and electronic properties of the compound suggests that Ti1-x AlxO2 is a potential candidate for gas sensing and photovoltaic device.

Effect of Co doping in tailoring the crystallite size, surface morphology and optical band gap of CuO thin films prepared via thermal spray pyrolysis

Md. Majibul Haque Babu, Jiban Podder, Rabeya Rahman Tofa, Lokman Ali

Abstract

In this paper, we reported the nonmagnetic semiconductor to half metal transition behavior of Co doped CuO (CCO) thin films with p-to n-type characteristics for the first time. The thin films are prepared using a thermal spray pyrolysis technique with variations of Co doping concentration from 0 to 8 at.% in the steps of 2 at.%. Subsequently, the surface morphological, structural, optical, electrical properties and electronic band structures by density functional theory (DFT) have been studied intensively. The surface morphology of the CCO thin films is significantly influenced by Co doping concentrations and agglomerated spherical grains are formed, as indicated by field emission scanning electron microscopy (FESEM). The quantitative analysis is carried out by the energy dispersive X-ray (EDX) analysis that confirms the presence of Cu, O and Co atoms. X-ray diffraction (XRD) reveals all the deposited CCO thin films are belong to monoclinic structure with mixed phases, and average crystallite size shrinkages from 28.67 to 18.96 nm with Co doping concentrations. The optical transmittance and the band gap decrease noticeably from 85% to 58%, and 3.00 to 1.98 eV, respectively. Several significant optical parameters such as Urbach energy, steepness parameter, electron–phonon interaction, refractive index, dielectric constant and static dielectric constant is examined. Enhancement of Cu-O bond length is determined and found similarities between the Rietveld refinement and DFT studies. With the spin polarized density of state (DOS),
polarized value lies between 0 and above 1 which confirms that semiconductor to half metal phase transition. Using the Hall Effect measurement, p- to n-type conductivity is determined, and finally a lower resistivity and mobility is found to be 07.83×10􀀀 3 Ω cm and 0.003 cm2V􀀀 1s􀀀 1, respectively at 8 at.% CCO thin film. Thus, the above results depict that 8 at.% of CCO thin films may have potential application in the field of spintronic and optoelectronic devices.

Influence of Ni doping on the morphological, structural, optical and electrical properties of CuO thin films deposited via a spray pyrolysis

Join Uddin, Mehnaz Sharmin, Mohammed Nasim Hasan, Jiban Podder

Abstract

Nanostructured copper oxide (CuO) and Nickel (Ni)-doped CuO thin films with different concentrations of Ni ranging from 2 to 8 at.% were synthesized onto a plain glass substrate at the substrate temperature, 350 ◦C by a thermal spray pyrolysis technique. Field emission scanning electron microscopy (FESEM) analysis of CuO and Nidoped CuO thin films detected the closely spaced rock-like nanostructures, evenly distributed on the film surfaces. The average particle sizes of CuO and Ni-doped CuO thin films were calculated from the FESEM and found between 260 and 63 nm. Energy-dispersive X-ray analysis revealed that CuO and Ni-doped CuO thin films were stoichiometric and typically comprised of Cu, O, and Ni. X-ray diffraction analysis showed the monoclinic structure of the films with the most preferred orientation plane (111) along with the (111), (202) and (022) crystalline planes. The maximum crystallite size was found at about 81 nm for 6 at% Ni-doped CuO thin film. CuO film showed an optical transmittance of about 33% in the visible-NIR region. Ni-doping enhanced the absorbing nature of CuO thin films in the vis-NIR region of light. With the rise of Ni content in CuO thin films, the optical bandgap gradually increased from 2.28 to 2.78 eV. Resistivity raised from 9.28 × 103 to 49.01 × 103 Ω-cm with the increase of the amount of Ni.

Semiconductor to metallic transition under induced pressure in Cs2AgBiBr6 double halide perovskite: a theoretical DFT study for photovoltaic and optoelectronic applications

Md. Nurul Islam, Jiban Podder, * Tusar Saha and Protima Rani

Abstract

Inorganic double halide perovskites have a wide range of applications in low-cost photovoltaic and optoelectronic devices. In this manuscript, we have studied their structural, electronic, mechanical and optical properties using density functional theory (DFT) simulations. In this work, hydrostatic pressure is induced from 0 to 50 GPa. Disordered Ag and Bi atoms have a large impact on band gap energy; in this case, the indirect band gap is transferred towards a direct band gap. We have seen that pressure-driven samples have transformed a band energy semiconductor into a metallic one. Under the induced hydrostatic pressure, the covalent bond is transformed into a metallic bond and the bond lengths are reduced. Meanwhile, pressure-induced samples enhance symmetry breaking in [AgBr6]5 and [BiBr6]3 octahedra, which reduces the density of states of the Fermi surface and lowers the total energy. The mechanical behaviors demonstrated that the studied materials are mechanically stable as well as ductile and their ductile nature is enhanced by the driving pressure. The absorption peak is shifted towards the low energy region with increased hydrostatic pressure. The absorptivity and dielectric constant values are also increased with driving pressure. Phase transformed double halide perovskites triggered by outside stimuli produce several outstanding materials properties, giving great scope for a broad range of applications. This type of pristine and disordered double halide perovskite with pressure-driven semiconductor-to-metal phase transition samples may have potential applications in optoelectronic and photovoltaic devices.

Bandgap tuning in ZnO thin films and enhanced nn-type properties through Mn doping synthesized by a simple spray pyrolysis

Md. Khorshed Alam, Mehnaz Sharmin and Jiban Podder

Abstract

Undoped and manganese (Mn)-doped zinc oxide (ZnO) thin films have been deposited onto glass substrates at 300∘∘C using a low cost spray pyrolysis technique. Structural, optical and electrical properties of the as-deposited films have been investigated. Scanning electron microscopy images show the existence of clusters with well-defined nucleation centers consisting of highly dense ganglia-like fibers over a large area around the nucleation center. Chemical compositions of the ZnO and Mn-doped ZnO thin films are studied by using energy dispersive X-ray (EDX) analysis. X-ray diffraction spectra depict that the films have polycrystalline wurtzite structure. The average crystallite sizes are calculated in the range of 8–16 nm by Williamson–Hall method and found in good agreement with Scherer method. Optical transmittance of the films is about 80% in the visible region. Bandgap energy is tuned to 2.83 eV from 3.10 eV with increasing Mn doping. Electrical resistivity at room-temperature decreases significantly with increasing Mn doping as well as increasing temperature from 300–440 K. The activation energies in the temperature ranges 300–350 K and 350–440 K are found to be in the range of 0.25–0.16 eV and 0.35–0.59 eV, respectively. Hall Effect measurements show that the thin films have negative Hall co-efficient indicating nn-type conductivity at room-temperature. Carrier concentration is found to be of the order of 1018cm−3.

Enhanced gas sensing and photocatalytic activity of reduced graphene oxide loaded TiO2 nanoparticles

Suresh Sagadevan, J. Anita Lett, Getu Kassegn Weldegebrieal, Md Rokon ud Dowla Biswas, Won Chun Oh, Solhe F. Alshahateet, Is Fatimah, Faruq Mohammad, Hamad A. Al-Lohedan, Suriati Paiman, Jiban Podder, Mohd Rafie Johan

Abstract

In the present study, we have evaluated the gas sensing and photocatalytic activity of reduced graphene oxide (rGO) conjugated titanium dioxide (TiO2) nanoparticles (NPs) formed by the hydrothermal method. The assynthesized rGO-TiO2 nanocomposite were characterized for the physicochemical properties such as the nature of crystallinity, functionalization, and morphology by making use of the powder X-ray diffraction, Fourier transform-infrared spectroscopy, and scanning electron microscopy, respectively. On testing the gas sensing properties, we found that the rGO-TiO2 nanocomposite can serve as the chemoresistive-type sensor because of its sensitivity and selectivity towards different concentrations of hydrogen and oxygen at room temperature conditions. However, the rGO-TiO2 sensor’s response and recovery speed towards hydrogen and oxygen needs further optimization. Test of photocatalytic activity of TiO2-rGO catalyst for the removal of two model contaminant dyes, RhB and MB showed effective removal, with respective degradation percentages of about 80 and 90% within the first 50 min of irradiation under visible light irradiation. Besides, MB was more effectively degraded using TiO2-rGO than pure TiO2 during the first 30 min of irradiation and this enhanced activity can be attributed to the increased capacity of light absorption, the efficiency of charge carriers separation, and the specific surface area maintained by the rGO-TiO2 nanocomposite to effectively utilize the photo-generated holes (h+) and superoxide radicals (O2􀀀 •), responsible for the degradation of the dye. Based on the overall analysis, the formation of rGO-TiO2 nanocomposite can significantly improve the gas sensing and photocatalytic properties of TiO2 NPs and thus can be potential for practical applications in future nanotechnology.

Enhanced gas sensing and photocatalytic activity of reduced graphene oxide loaded TiO2 nanoparticles

Suresh Sagadevan, J. Anita Lett, Getu Kassegn Weldegebrieal, Md Rokon ud Dowla Biswas, Won Chun Oh, Solhe F. Alshahateet, Is Fatimah, Faruq Mohammad, Hamad A. Al-Lohedan, Suriati Paiman, Jiban Podder, Mohd Rafie Johan

Abstract

In the present study, we have evaluated the gas sensing and photocatalytic activity of reduced graphene oxide (rGO) conjugated titanium dioxide (TiO2) nanoparticles (NPs) formed by the hydrothermal method. The assynthesized rGO-TiO2 nanocomposite were characterized for the physicochemical properties such as the nature of crystallinity, functionalization, and morphology by making use of the powder X-ray diffraction, Fourier transform-infrared spectroscopy, and scanning electron microscopy, respectively. On testing the gas sensing properties, we found that the rGO-TiO2 nanocomposite can serve as the chemoresistive-type sensor because of its sensitivity and selectivity towards different concentrations of hydrogen and oxygen at room temperature conditions. However, the rGO-TiO2 sensor’s response and recovery speed towards hydrogen and oxygen needs further optimization. Test of photocatalytic activity of TiO2-rGO catalyst for the removal of two model contaminant dyes, RhB and MB showed effective removal, with respective degradation percentages of about 80 and 90% within the first 50 min of irradiation under visible light irradiation. Besides, MB was more effectively degraded using TiO2-rGO than pure TiO2 during the first 30 min of irradiation and this enhanced activity can be attributed to the increased capacity of light absorption, the efficiency of charge carriers separation, and the specific surface area maintained by the rGO-TiO2 nanocomposite to effectively utilize the photo-generated holes (h+) and superoxide radicals (O2􀀀 •), responsible for the degradation of the dye. Based on the overall analysis, the formation of rGO-TiO2 nanocomposite can significantly improve the gas sensing and photocatalytic properties of TiO2 NPs and thus can be potential for practical applications in future nanotechnology.

Electronic structure transition of cubic CsSnCl3 under pressure: effect of rPBE and PBEsol functionals and GW method

Md. Majibul Haque Babu, Tusar Saha, Jiban Podder, Protima Roy, Abdul Barik , Enamul Haque

Abstract

The antiperovskites based on metal halides have emerged as potential materials for advanced photovoltaic and electronic device applications. But the wide bandgap of non-toxic CsSnCl3 reduces its photovoltaic efficiency. Here, we report the change of electronic structure of CsSnCl3 at different pressure by using GGA-rPBE and GGAPBEsol functionals and the GW method. We have shown that the prediction of electronic structure transition (semiconducting to metallic state) strongly depends on the exchange-correlation and the GW method gives the most reasonable values of the bandgap under pressure. The pressure increases the electronic density of states close to the Fermi level by pushing the valence electrons upward and thus, reduces the bandgap linearly. Afterward, we have also investigated the influence of pressure on absorption coefficient, and mechanical properties meticulously. Although the pressure shifts the absorption peak to lower photon energies, the absorption coefficient is slightly improved.

Electronic structure transition of cubic CsSnCl3 under pressure: effect of rPBE and PBEsol functionals and GW method

Md. Majibul Haque Babu, Tusar Saha, Jiban Podder, Protima Roy, Abdul Barik , Enamul Haque

Abstract

The antiperovskites based on metal halides have emerged as potential materials for advanced photovoltaic and electronic device applications. But the wide bandgap of non-toxic CsSnCl3 reduces its photovoltaic efficiency. Here, we report the change of electronic structure of CsSnCl3 at different pressure by using GGA-rPBE and GGAPBEsol functionals and the GW method. We have shown that the prediction of electronic structure transition (semiconducting to metallic state) strongly depends on the exchange-correlation and the GW method gives the most reasonable values of the bandgap under pressure. The pressure increases the electronic density of states close to the Fermi level by pushing the valence electrons upward and thus, reduces the bandgap linearly. Afterward, we have also investigated the influence of pressure on absorption coefficient, and mechanical properties meticulously. Although the pressure shifts the absorption peak to lower photon energies, the absorption coefficient is slightly improved.

Synthesis, growth and physicochemical characterization of 8-hydroxyquinolinium 3, 4 dimethoxybenzoate, a novel organic nonlinear optical crystal.

R. Archana, S. Sudhahar, Suresh Sagadevan, Faruq Mohammad, Jiban Podder

Abstract

"Structural, Optical and Electrical Properties of Cu: MnO2 Nanostructured Thin Films for Glucose Sensitivity Measurements",

Muslima Zahan, Jiban Podder

Abstract

p to n-type transition with wide blue shift optical band gap of spray synthesized Cd doped CuO thin films for optoelectronic device applications 

M. H. Babu, J. Podder, B. C. Dev, M. Sharmin

Abstract

Optical constants and dispersion energy parameters of Zn-doped TiO2 thin films prepared by spray pyrolysis technique

Tapash Chandra Paul, Jiban Podder, Majibul Haque Babu

Abstract

Band gap tuning of p-type Al-doped TiO2 thin films for gas sensing applications

M. N. Islam, J. Podder, K. S. Hossain and S. Sagadevan
Journal Paper Thin Solid Films

Abstract

The role of Al and Co co-doping on the band gap tuning of TiO2 thin films for applications in photovoltaic and optoelectronic devices

M. N. Islam, J. Podder

Abstract

Enhanced properties of cadmium mercury thiocyanate bis (N-methyl formamide): A promising non-linear optical crystal

A. Subashini, K. Rajarajan, Suresh Sagadevan, Preeti Singh, Jiban Podder, Faruq Mohammad,

Abstract

Investigation of the optical, photoluminescence, and dielectric properties of P-Toludinium picrate single crystals

Archana Rajendran, S. Sudhahar, K. Sadayandi, M.Vidhya, Suresh Sagadevan, Faruq Mohammad, Jiban Podder,

Abstract

Optical constants and dispersion energy parameters of Zn-doped TiO2 thin films prepared by spray pyrolysis techniqueOptical constants and dispersion energy parameters of Zn-doped TiO2 thin films prepared by spray pyrolysis technique

Tapash Chandra Paul, JibanPodder, Majibul Haque Babu

Abstract

The present work describes the deposition and investigation of structural and optical characteristics of bare and
doped TiO2 thin films. The TiO2 products are obtained through simple and cost effective spray pyrolysis technique
(SPT) using titanium (IV) butoxide as Ti precursor. The impact of Zn doping on the crystal structure and
phase formation is studied by X-ray diffraction (XRD) analysis. The formation of anatase phase relative to pure
TiO2 along with preferred orientation along the [101] direction is confirmed with the help of XRD analysis. Zn
doping into TiO2 lattice network leads to an identical diffraction pattern. A deterioration of crystallinity is
obtained in crystallite size employing the numerous methods such as Scherrer method, Williamson–Hall,
Halder–Wagner and Wagner–Agua analysis in accordance with Zn. In addition, absorbance results obtained from
UV–vis spectroscopy has been exerted to examine the optical characteristics. It is noted that the dopant introduction
has an impact on the optical properties and the direct band gap value obtained from Tauc relation
exhibits a red shift with Zn content. The influence of the Zn doping elements on the optical constants of TiO2
product has been investigated. The dielectric constants, dispersion parameters, loss factor and distribution of
volume and surface energy loss of the TiO2 products have been computed as well. The as-prepared nanostructured
Zn-doped TiO2 thin films can be used as potential candidates for different optoelectronic devices

Influence of Fe3+ ions doping on TiO2 thin films: Defect generation, d-d
transition and band gap tuning for optoelectronic device applications

Tapash Chandra Paul, Majibul Haque Babu, Jiban Podder, Bidhan Chandra Dev, Sapan Kumar Sen, Suravi Islam

Abstract

In this article, we have explored the influence of Fe3+ ion on the surface morphological, structural, optical and
electrical properties of TiO2 thin films grown on glass substrates by thermal spray pyrolysis technique. The
FESEM micrographs of the deposited TiO2 thin films reveal that the surface consists of agglomerates of small
grains. The anatase and rutile phase is confirmed by XRD and Debye-Scherer (D-S), Uniform Deformation Model
(UDM) and Halder-Wagner (HW) method are employed to determine the structural parameters using XRD peak
profile analysis. A red shift occurs in absorption spectra and band gap decreases with Fe content. The optical
parameters such as skin depth, optical static dielectric constant, Urbach energy, etc and Electron-phonon
interaction are increased with increasing Fe contents, whereas steepness parameter decreases. The electrical
properties are studied by Hall Effect measurements. The paramount study is useful for standardizing the Fedoped
TiO2 thin films for optoelectronic device applications.

Role of Fe doping on structural and electrical properties of MnO2 nanostructured thin films for glucose sensing performance

Muslima Zahan, Jiban Podder

Abstract

Iron (Fe) doped manganese dioxide (MnO2) nanostructured thin films (Fe: MnO2) were prepared by a spray pyrolysis deposition technique to explore their morphological, structural, and electronic properties suitable for glucose sensing abilities. Many useful characteristics were observed in the growth process and phase transformation due to the addition of Fe concentration in the range of 0–8 at %. Fe concentration strongly influenced the crystallite size of MnO2 analyzed by field emission scanning electron microscope. Powder X-ray diffraction (PXRD) pattern of the deposited thin films showed the tetragonal crystal structure with a body-centered space group (I41/acd) having lattice parameters a ¼b ¼9.787 Å and c ¼2.865 Å and well agrees with the JCPDS card file no. 44–0141. Crystallite size was measured ranging from 20 nm to 30 nm using Debye Scherer relation. Williamson-Hall plot results indicated the appearance of strain for Fe doping. Maximum carrier concentration was found at 4 at% Fe concentration using Hall Effect measurement. The highest glucose-sensing response was recorded at about 29% at 5 min for 4 at% Fe concentration.

Role of Fe doping on structural and electrical properties of MnO2 nanostructured thin films for glucose sensing performance

Muslima Zahan, Jiban Podder

Abstract

Iron (Fe) doped manganese dioxide (MnO2) nanostructured thin films (Fe: MnO2) were prepared by a spray pyrolysis deposition technique to explore their morphological, structural, and electronic properties suitable for glucose sensing abilities. Many useful characteristics were observed in the growth process and phase transformation due to the addition of Fe concentration in the range of 0–8 at %. Fe concentration strongly influenced the crystallite size of MnO2 analyzed by field emission scanning electron microscope. Powder X-ray diffraction (PXRD) pattern of the deposited thin films showed the tetragonal crystal structure with a body-centered space group (I41/acd) having lattice parameters a ¼b ¼9.787 Å and c ¼2.865 Å and well agrees with the JCPDS card file no. 44–0141. Crystallite size was measured ranging from 20 nm to 30 nm using Debye Scherer relation. Williamson-Hall plot results indicated the appearance of strain for Fe doping. Maximum carrier concentration was found at 4 at% Fe concentration using Hall Effect measurement. The highest glucose-sensing response was recorded at about 29% at 5 min for 4 at% Fe concentration.

Green synthesis of cuprous oxide nanoparticles for environmental remediation and enhanced visible-light photocatalytic activity

M. Muthukumarana, G. Dhinagarana, K. Venkatachalama, Suresh Sagadevanb, S. Gunasekaranc, Jiban Podderd, Faruq Mohammade, M.M. Shahidf, Won Chun Ohg

Abstract

In this work, we emphasize the green synthesis of cuprous oxide (Cu2O) nanoparticles (NPs) by Fehling's route using banana (Musa acuminate) fruits where the formation of products by the involvement of natural ingredients is considered to be the solvent-free route. The as-synthesized Cu2O samples were thoroughly characterized by various analytical techniques in order to fully understand the surface bonding and functional groups, optical properties, surface charges, phase
purity and crystallinity, surface morphological features, and elemental analysis. On testing of the photocatalytic activity, the material is investigated to be p-type Cu2O and exhibited highly efficient photocatalytic behavior due to the interfacial structure that tends to reduce the recombination rate of a photogenerated electron (e−) - hole (h+) pairs. Further, we have explored this property for the degradation of organic contaminants, methylene blue and fo

Comparison of sunlight-driven photocatalytic activity of semiconductor metal oxides of tin oxide and cadmium oxide nanoparticles

M. Vidhya, P. Raja Pandi, R. Archana, K Sadayandi, Suresh Sagadevan, S. Gunasekaran, Jiban Podder, Faruq Mohammad, Hamad A. Al-Lohedan, Won Chun Oh

Abstract

This study is aimed to investigate the photocatalytic efficiencies of two different metal oxide nanoparticles (NPs), SnO2 and CdO formed by the simple chemical precipitation route. The synthesized metal oxide NPs were examined by several techniques in order to understand the morphological (FESEM), structural (XRD), functional (FTIR), and optical (UV-vis) characteristics. The analysis of results confirmed the successful formation of SnO2 and CdO NPs along with their desired chemical compositions and electronic band structures. Further testing of their photocatalytic efficiency with the use of methylene blue (MB) degradation in the presence of sunlight confirmed their catalytic efficiency. Within the two NPs, the SnO2 has a little higher activity as compared to the CdO NPs and this can be attributed to the increased surface area by means of the formation of nanospheres for the SnO2 ones, while the rod-shaped agglomerated structure with less surface area delaying the rate of degradation. Further from the analysis, it can be confirmed for the superior photocatalytic activity of SnO2 particles having spherical shape against the rodshaped CdO NPs.

Synthesis and characterization of Zn incorporated TiO2 thin films impact of crystallite size on X-ray line broadening and band gap tuning

Tapash Chandra Paul, Jiban Podder

Abstract

Band Gap Tuning, n-type to p-type Transition and Ferrimagnetic Properties of Mg Doped α-Fe2O3 Nanostructured Thin Films 

Mehnaz Sharmin, Jiban Podder

Abstract

Low temperature synthesis of α- and β-phase Bi2O3 thin film via B doping: tailoring optical band gap and n- to p-type Bi2O3 

Bidhan Chandra Dev, Majibul Haque Babu, Jiban Podder, Suresh Sagadevan, Abdullah Zubair

Abstract

Influence of Ni doping in a lead-halide and a lead-free halide perovskites for optoelectronic applications

Nurul Islam, M. A Hadi, Jiban Podder

Abstract

Synthesis and characterisation of bis (2 methyl-8-hydroxyquinoline) zinc nanoparticles for organic light emitting   diode applications 

J. P. Suchitra, A. Kala, Suresh Sagadevan, V. Bharathi Devi and Jiban Podder

Abstract

Cu-Doped SnO2 Nanoparticles: Synthesis and Properties

Suresh Sagadevan, Zaira Zaman Chowdhury, Mohd. Rafie Bin Johan, Fauziah Abdul Aziz, L. Selva Roselin, Jiban Podder, J. Anita Lett and Rosilda Selvin

Abstract

Surface morphology, optical properties and Urbach tail of spray deposited Co3O4 thin films 

Muslima Zahan, Jiban Podder

Abstract

Effect of Fe-doping and post annealing temperature on the structural and optical properties of MoO3 nanosheets 

Sapan Kumar Sen, Tapash Chandra Paul, M.S. Manir, Supria Dutta, M.S. Hossain, Jiban Podder

Abstract

Texture coefficient and band gap tailoring of Fe-doped SnO2 nanoparticles via thermal spray pyrolysis 

Majibul Haque Babu, Bidhan Chandra Dev, Jiban Podder

Abstract

Structural, optical and photocatalysis properties of sol–gel deposited Al-doped ZnO thin films 

Muhammad R. Islam, Mukhlasur Rahman, S.F.U. Farhad, J. Podder

Abstract

Influence of Al Doping on the Structure and Properties of Fe2O3 Thin Films: High Transparency, Wide Band Gap, Ferromagnetic Behavior 

Mehnaz Sharmin and Jiban Podder

Abstract

Eco‑friendly approach in synthesis of silver nanoparticles and evaluation of optical, surface morphological and antimicrobial properties 

Venilla Selvaraj, Suresh Sagadevan, Lakshmipathy Muthukrishnan, Mohd. Rafie Johan, Jiban Podder

Abstract

Influence of Fe2+/Fe3+ions in tuning the optical band gap of SnO nanoparticles synthesized by TSP method: Surface morphology, structural and optical studies 

B. Majibul Haque, D. Bidhan Chandra, P. Jiban, I. Nurul, Z. Abdullah

Abstract

Structure, Properties, Photocatalytic and Antibacterial activity and Applications of Zinc Oxide Nanoparticles-an Overview

Suresh Sagadevan, K. Pradeev Raj, Fauziah Abdul Aziz, Zaira Zaman Chowdhury, Mohd. Rafie Bin Johand, and Jiban Podder

Abstract

Influence of annealing temperature on tuning the band gap of Mn-doped ZnS thin films deposited by spray pyrolysis technique 

M. Zahan, M R Islam and J Podder

Abstract

Chemically stabilized reduced graphene oxide/zirconia nanocomposite: synthesis and characterization 

Suresh Sagadevan, Zaira Zaman Chowdhury, Md Enamul Hoque and Jiban Podder

Abstract

Iodate in Calcite and Vaterite: Insights from Synchrotron X-ray Absorption Spectroscopy and First Principles Calculation 

J. Podder, Lin, J., Sun, W., Botis, S. M., Tse, J., Chen, N., Hu, Y., Li, D. & Seaman, J., and Y. Pan

Abstract

Preparation and characterization of a bis thiourea sodium iodide (BTSI) A potential NLO crystal 

Subashini, K. Rajarajan, Suresh Sagadevan, Preeti Singh, Jiban Podder

Abstract

Structural and Optical Characterization of Magnesium Doped Zinc Oxide Thin Films Deposited by Spray Pyrolysis 

M. Biswas, M. Sharmin, C. Das, S. Choudhury and J. Podder

Abstract

Investigation on Structural, Surface Morphological and Dielectric Properties of Zn Doped SnO2 Nanoparticles 

Suresh Sagadevan, Jiban Podder

Abstract

Structural, morphological, optical and electrical properties of PbSe thin films grown by chemical bath deposition 

Suresh Sagadevan, Jiban Podder, and Isha Das

Abstract

Synthesis and characterization of CoWO4 nanoparticles via chemical precipitation technique

Suresh Sagadevan, Jiban Podder, and Isha Das

Abstract

Hydrothermal Synthesis of Zirconium Oxide Nano Particles and Its Characterization

Suresh Sagadevan, Jiban Podder, Isha Das

Abstract

Synthesis of lead titanate nanoparticles via sol-gel technique and its characterization 

Suresh Sagadevan, Isha Das and Jiban Podder

Abstract

Effect of aluminum doping on the structural and optical properties of ZnO thin films synthesized by spray pyrolysis technique 

J. K. Saha and J. Podder

Abstract

Investigation of Structural, SEM, TEM and Dielectric Properties of BaTiO3 nanoparticles 

Suresh Sagadevan and Jiban Podder

Abstract

Optical and electrical properties of nanocrystalline SnO2 thin films synthesized by chemical bath deposition method

Suresh Sagadevan and Jiban Podder

Abstract

Optical properties of spray pyrolysis CDS:Al thin films 

A. H. Rubel and J. Podder

Abstract

Investigations on structural, optical, morphological and electrical properties of nickel oxide nanoparticles

Suresh Sagadevan and Jiban Podder

Abstract

Surface morphology and microstructural characterization of KCl crystals grown in halite-sylvite solutions by back scattered diffraction techniques

Podder J., Ritwik Basu, Richard W. Evitts, Robert W. Besant

Abstract

Structural, Optical and Electrical Properties of Pure and Co-Doped ZnO Nano Fiber Thin Films Prepared by Spray Pyrolysis 

Mahjabin Taskin, Jiban Podder

Abstract

Synthesis of carnallite crystal from KCl-MgCl2 solutions and its characterization 

Podder J., Shaoyu. G., Richard W. Evitts, Robert W. Besant and D. Matthews

Abstract

Effect of lead chloride on the growth and  surface properties of potassium chloride crystals from aqueous solutions

Podder J., Richard W. Evitts, Robert W. Besant

Abstract

Structural, optical and electrical characterization of spray pyrolised Indium sulfide thin films

F. Rahman, J. Podder, and M. Ichimura

Abstract

Effect of Fe-doping on the structural and optical properties of ZnO thin films by spray pyrolysis

S. M. Salaken, E. Farzana and J. Podder

Abstract

Bang gap tuning in ZnO through Ni doping via spray pyrolysis 

 

S. C. Das, R. J. Green, J. Podder, T. Z. Regier, G. S. Chang and A. Moewes

Abstract

Synthesis of nanocrystalline ZnS thin films via spray pyrolysis for optoelectronic devices

F. Rahman, M. Zahan, and J. Podder

Abstract

Optical and electrical characteristics of pure CdS thin films for different thickness

A. H. Rubel and J. Podder

Abstract

Growth, structural, thermal and optical properties of   Mg2+- Co2+ doped potassium acid phthalate crystals 

M. Hossain, S.A. Begum, and J. Podder

Abstract

2-[(E)-2-(4-Methoxyphenyl) ethenyl]-1-methylpyridinium iodine

K. Senthil, S. Kalainathan, A. Rubankumar, V. Ramkumar,and J. Podder

Abstract

Studies on growth and characteristics of triglycine sulphate crystals doped with potassium chloride

H. N. Das and J. Podder

Abstract

4-[2-(4-Ethoxyphenyl) ethenyl]-1-methylpyridinium napthalene-2-sufonate

R. K. Balachandar, S. Kalainathan, P. G. Aravindan, Shibu M. Eappen and J. Podder

Abstract

4-Methyl-N-[4-(dimethyl amino) benzylidene] aniline

R. K. Balachandar, S. Kalainathan, Shibu M. Eappen and J. Podder

Abstract

4-Fluoro-N-[(1E)-(3, 4, 5-tri methoxy phenyl) methylene] aniline

R. K. Balachandar, S. Kalainathan, Shibu M. Eappen and J. Podder

Abstract

Deposition of nano fiber ZnO and Zn1-xCdxO thin films grown by a simple spray pyrolysis and characterization for optoelectronic application

J. Podder and M. R. Islam

Abstract

Synthesis and characterization of as-deposited Cd1xPbxS thin films prepared by spray pyrolysis technique 

M. Kamruzzaman, R. Dutta, and J. Podder

Abstract

Synthesis and characterization of Cd1xCoxS thin films prepared using the spray pyrolysis technique 

 

M. Kamruzzaman, T. R. Luna, J. Podder and M. G. M. Anowar

Abstract

Structural, optical and electrical characterization of CuInS2 thin films by spray pyrolysis

K. M. A. Hussain, J. Podder, D. K. Saha, M. Ichimura

Abstract

Structural and electrical transport properties of CdS and Al-doped CdS thin films deposited by spray pyrolysis

A. H. Rubel and J. Podder

Abstract

Effect of annealing temperature on structural, optical and electrical properties of pure CdS thin films deposited by spray pyrolysis technique

A. H. Rubel and J. Podder

Abstract

Effect of molar concentration on the optical and surface properties of CdS Thin film

A. H. Rubel and J. Podder

Abstract

Dielectric properties of spray pyrolized Aluminum doped Cadmium sulfide (Al-doped CdS) thin films

A. H. Rubel and J. Podder

Abstract

Investigations on thermal, electrical, mechanical and etching studies of KCl doped Triglycine sulphate single crystals

H. N. Das and J. Podder

Abstract

Growth and Electrical Transport Properties of Pure and LiSO4 Doped Triglycine Sulphate Crystal from Low Temperature Solution

F. Khanum and J. Podder

Abstract

Effect of EDTA on the metastable zone width and growth kinetics of ADP crystal

A. Rahman and J. Podder

Abstract

The effect of EDTA on the nucleation kinetics and mechanical properties of KDP crystal

A. Rahman and J. Podder

Abstract

Investigation of structural properties and optical band gap in L-alanine single crystal for electro-optic devices

F. Akhtar and J. Podder

Abstract

The Concentration and Distribution of Trace Elements in Coals and Ashes of the Barapukuria Thermal Power plant, Bangladesh 

M. A. Islam, Sk. A. Latif, S. M. Hossain, M. S. Uddin,  J. Podder

Abstract

Crystallization and Characterization of Triglycine Sulfate (TGS) Crystal Doped with NiSO 

F. Khanum and J. Podder

Abstract

A Study on Structural, Optical, Electrical and Etching Characteristics of Pure and L-Alanine Doped Potassium Dihydrogen Phosphate Crystals

F. Akhtar and J. Podder

Abstract

Studies on the effect of L-alanine on the structural, optical and thermal properties of potassium acid phthalate crystals

F. Akhtar and J. Podder

Abstract

Structural and optical properties of triglycine sulfate   single crystals doped with potassium bromide

 

F. Khanum and J. Podder

Abstract

Structural, Optical, Electrical and Thermal Characterizations of Pure and L-alanine Doped Ammonium Dihydrogen Phosphate 

F. Akhtar and J. Podder

Abstract

Crystallization of zinc sulphate single crystals and its structural, thermal and optical characterization

J. K. Saha and J. Podder

Abstract

Elemental, Structural and Optical Properties of Cd1-xCoxS Thin Films Prepared by Spray Pyrolysis Technique

M. Kamruzzaman, T. R. Luna, J. Podder

Abstract

Studies on structural and optical characterization of In-Zn-S ternary thin films prepared by spray pyrolysis

F. Rahman, J. Podder and M. Ichimura

Abstract

An investigation of structural and electrical properties of nano crystalline SnO2: Cu thin films deposited by spray pyrolysis 

J. Podder and S. S. Roy

Abstract

Effect of annealing on the structural and optical properties of nano fiber ZnO films deposited by spray pyrolysis

M. R. Islam, J. Podder, S.F.U. Farhad and D. K. Saha

Abstract

Synthesis and characterization of manganese sulphide thin films deposited by spray pyrolysis 

R. I. Chowdhury, J. Podder, and A. B. M. O. Islam

Abstract

Synthesis and optical characterization of pure and Cu doped SnO2 thin films deposited by spray pyrolysis  

S. S. Roy and J. Podder

Abstract

Effect of molar concentration on the optical and Surface properties of CdO thin films deposited by spray pyrolysis

 

M.M.Islam, J. Podder, and M.R.Islam

Abstract

Effect of EDTA on the Growth Kinetics and Structural and Optical Properties of KDP Crystal  

A. Rahman and J. Podder

Abstract

Structural and optical characterization of MnS thin film deposited by spray pyrolysis technique for optoelectronic applications

M. R. I. Chowdhury, J. Podder, S. F. U. Farhad and D. K. Saha

Abstract

Optical properties of ZnO nano fiber thin films grown by spray pyrolysis of zinc acetate precursor

M.R.Islam and J. Podder

Abstract

Characteristics of diamond like carbon deposited under different experimental conditions

K. M. A. Hussain, J. L. Sullivan, J. Podder, and A. K. M. Fazlul Hoque

Abstract

Influence of co-doped bimettalic impurities on the metastable zonewidth and induction period for nucleation of KDP from aqueous solutions

S.A. Begum and J. Podder

Abstract

Effect of co-doped bimettalic impurities on the growth and nucleation kinetics of potassium acid phthalate (KAP).

S.A. Begum and J. Podder

Abstract

An investigation on the growth and characterization of thiourea single crystals grown from aqueous solutions

S. A. Begum, M. Hossain, J. Podder

Abstract

Growth and characterization of epsomite single crystals doped with KCl from low temperature aqueous solutions

S. Ferdous and J. Podder

Abstract

Optical and electrical properties of CdO thin films deposited by spray pyrolysis method

M.M.Islam, M.R.Islam and J. Podder

Abstract

Structural and optical characterization of boron nitrogen doped amorphous carbon films deposited by r.f. PECVD 

J. Podder, Rusop M., Soga T. and Jimbo T

Abstract

Effect of gas pressure on the boron doped hydrogeneted amorphous carbon thin films grown by radio frequency plasma enhanced chemical vapor deposition 

Rusop M., Abdullah S., J. Podder, Soga T. and Jimbo T

Abstract

Optical and structural properties of nitrogeneted diamond like carbon film prepared by r.f.PECVD

Rusop M., Abdullah S., J. Podder, Soga T. and Jimbo T

Abstract

Boron-doped amorphous carbon thin films grown by r.f. PECVD under different partial presure

J. Podder, Rusop M., Soga T. and Jimbo T.

Abstract

Preparation and characterization of CuInS2 thin films from aqueous solutions by novel photochemical deposition technique

J. Podder, Miyawaki T and Ichimura M

Abstract

Photochemical deposition of CuxS thin films from aqueous solutions

J. Podder, Kobayashi R and Ichimura M

Abstract

Study of trace elemental analysis in Permian Gondana coals of Bangladesh by PIXE technique

J. Podder, S. A. Tarek and T. Hossain

Abstract

Habit modification of epsomite in presence of urea

S. Ramalingom, J. Podder, S. N. Kalkura

Abstract

X-ray diffraction studies and its application on the examination of defect and growth mechanism of some laser host materials

J. Podder, and T. Hosain

Abstract

The study of impurities effect on the growth and nucleation kinetics of Potassium dihydrogen phosphate J. Crystal Growth, Vol. 237-239, p 70-75, 2002.

J. Podder

Abstract

Study of heteroatom effect on graphitic carbons derived from Anthracene-Phenanthrene sulphur systems by thermal and optical Analysis 

J. Podder, and T. Hossain

Abstract

Investigation on the crystallization and morphology of (β) K2SO4 from aqueous solutions

J. Podder, S. Ramalingom, and S. N. Kalkura, and P. Ramasamy

Abstract

An investigation of lattice distortion in urea and KCl doped KDP crystals grown from low temperature aqueous solutions

J. Podder, S. Ramalingom, and S. N. Kalkura

Abstract

Crystallization and characterization of orthorhombic MgSO4.7H2

S. Ramalingom, J. Podder and S. N. Kalkura

Abstract

A study on the thermal and electrical characterization on the Barapukuria coal of Northwestern of Bangladesh

J. Podder, and S. Majumder

Abstract

Growth and Characterization of single crystals of KDP and KCI doped KDP from aqueous solution

J. Podder and Md Khairul Hassan Bhuiyan

Abstract

Structural studies of Permian 'Gondwana' coals of  Barapukuria by Infrared Spectroscopy

J. Podder, S. A. Tarek, and T. Hossain

Abstract

Fourier transform Infrared (FT-IR) spectroscopic studies of Bangladeshi coal

J. Podder and T. Hossain

Abstract

Petrographic studies of Permian Gondwana coals from the boreholes of Barapukuria and Khalaspir of Northwestern Bangladesh

J. Podder and T. Hossain

Abstract

Investigation of graphitizing carbons from organic compounds by various experimental techniques

T. Hossain and J. Podder

Abstract

Characterization of pure KDP single crystals grown in silica gel medium

J. Podder, Hossain T., and Kalkura S. N

Abstract

A study of graphitizing coal by X-ray diffraction

J. Podder and T. Hossain

Abstract

Anisotropic crystalline growth developed in Bangladeshi coking coal during mesophase transformation

J. Podder and T. Hossain

Abstract

An investigation into the thermal behaviour of Bangladeshi coal

J. Podder, T. Hossain, and Kh. M. Mannan

Abstract

Characterization of Barapukuria   and Khalaspir coal found in the Northwestern zone of Bangladesh

J. Podder, T. Hossain, Kh. M. Mannan, and D. A. Begum

Abstract

The role of heteroatom on the carbonization and graphitization of polynuclear organic compounds

T. Hossain and J. Podder

Abstract

Solitons in strongly magnetized electron-positron plasmas and pulsar microstructure 

Mofiz U. A. and J. Podder

Abstract

Comparison of sunlight-driven photocatalytic activity of semiconductor metal oxides of tin oxide and cadmium oxide nanoparticles

M. Vidhyaa, P. Raja Pandia, R. Archanaa, K Sadayandia, Suresh Sagadevanb, S. Gunasekaranc, Jiban Podderd, Faruq Mohammade, Hamad A. Al-Lohedane, Won Chun Oh

Abstract

This study is aimed to investigate the photocatalytic efficiencies of two different metal oxide nanoparticles (NPs), SnO2 and CdO formed by the simple chemical precipitation route. The synthesized metal oxide NPs were examined by several techniques in order to understand the morphological (FESEM), structural (XRD), functional (FTIR), and optical (UV-vis) characteristics. The analysis of results confirmed the successful formation of SnO2 and CdO NPs along with their desired chemical compositions and electronic band structures. Further testing of their photocatalytic efficiency with the use of methylene blue (MB) degradation in the presence of sunlight confirmed their catalytic efficiency. Within the two NPs, the SnO2 has a little higher activity as compared to the CdO NPs and this can be attributed to the increased surface area by means of the formation of nanospheres for the SnO2 ones, while the rod-shaped agglomerated structure with less surface area delaying the rate of degradation. Further from the analysis, it can be confirmed for the superior photocatalytic activity of SnO2 particles having spherical shape against the rodshaped CdO NPs.

Crystallization and growth kinetics of binary mixed alkali metal halides from aqueous solutions and natural evaporation processes

J. Podder, Shaoyu.G., Richard W. Evitts, Robert W. Besant and D. Matthews

Abstract

Surface, optical and electrical characterization of Zn1-xCdxS thin films by spray pyrolysis

J. Podder and Hossain T

Abstract

Deposition of some transparent conducting oxide thin films by a simple spray pyrolysis technique and their characterizations for optoelectronic applications

J. Podder and Hossain T

Abstract

Structural and mechanical properties of diamond like carbon thin films semiconductors

 

K. M. A. Hussain, J. L. Sulivan and J. Podder

Abstract

Studies on tin oxide (SnO2) and Cu doped SnO2 thin films deposited by spray pyrolysis technique for window materials in solar cells

S. S. Roy and J. Podder

Abstract

Effect of CNT doping on electrical conductivity in bituminous coal

S. S. Siddique, S.M.M.A. Mamun, J. Podder and Kh. H.Bhuiyan

Abstract

Study of graphite and diamond like carbon from coal and carbonaceous materials by X-ray and other associated techniques and their relevance to industrial applications

J. Podder and Hossain T

Abstract

An investigation of graphite like carbon in Bangladesh coal by XRD and associated Raman Spectroscopic technique

J. Podder and Hossain T

Abstract

Boron doped amorphous carbon thin films by r.f.PECVD and their microstructure by atomic force microscopy

J. Podder, Rusop M., Rakesh Afre, Soga T., and Jimbo T

Abstract

Polarized light sensitive tint technique-a novel method for identifying graphitic carbons

J. Podder and Hossain T

Abstract

Characterization of graphitizable organic materials including coal and coal-peat by X-rays and other related techniques

Hossain T and J. Podder

Abstract

Barapukuria and Khalaspir coals: the state of the art and opportunities for research

J. Podder and Hossain T

Abstract

X-ray diffraction studies and its application on the examination of defect and growth mechanism of some laser host materials

J. Podder and Hossain T

Abstract

Studies on nucleation, metastable zone width and growth kinetics of KDP, ADP crystals in supersaturated aqueous solutions

J. Podder

Abstract

Abstract

Investigation on the electrical characterization of permian gondwana coal of Northwestern Bangladesh 

J. Podder and Majumder S

Abstract

The influence of impurities on the growth kinetics of potassium dihydrogen phosphate  

J. Podder, Ramalingom S.,Tarek S. A., Kalkura, S. N, and Ramasamy P

Abstract

Crystallization and characterization of Ammonium Oxalate single crystals

Tarek S. A., J. Podder, Ramalingom, S., Kalkura, S. N, and Ramasamy P

Abstract

The effect of impurity adsorption on the kinetics of crystallization: Orthorhombic (b) MgSO4.7H2

Ramalingom S, J. Podder, and Kalkura, S. N

Abstract

An Investigation into the Trace Elements Distribution in Permian Gondwana Coals of Northwestern Bangladesh by PIXE Spectroscopy

J. Podder, Tarek S. A., and Hossain T

Abstract

Growth and characterization of single crystals of K2CrO4 doped KDP from aqueous solution of different pH values

 

J. Podder, and Nahar M

Abstract

Growth of ADP, KDP and ADP-KDP mixed crystals from aqueous solution by the slow evaporation method

J. Podder and Akther T

Abstract

The study of the precursor states for the graphitization of Northwestern Bangladeshi coal

J. Podder and Hossain T

Abstract

Infrared (IR) Spectroscopic studies of Permian 'Gondwana' coals of Northwestern Bangladesh

J. Podder, Tarek S. A., and Hossain T

Abstract

Neutron radiography facilities in Bangladesh research reactor

Rahman M. A., J. Podder, and Karnal I

Abstract

Neutron radiography facilities at the Institute of Nuclear science & Technology

Rahman M. A., J. Podder and Karnal I

Abstract

Ultrarelativistic excitation of sonic solitons in magnetized plasma

Mofiz U. A and J. Podder

Abstract

Advances in Supercapacitor and Supercapattery- An Innovation Toward Energy Storage Devices:Chapter one - Background of energy storage,

Suresh Sagadevan, Mohd RafieJohan, A. R. Marlinda, Omid Akbarzadeh, Karuppasamy Pandian, M. M. Shahid, Faruq Mohammad, Jiban Podder

Abstract

Chapter two-Fundamental electrochemical energy storage systems

Suresh Sagadevan, A. R. Marlinda, Zaira Zaman Chowdhury, Yasmin Binti Abdul Wahab, Nor Aliya Hamizi,  M. M. Shahid, Faruq Mohammad, Jiban Podder, Mohd Rafie Johan

Abstract

Controlled Chemical Synthesis of Nanomaterials-A fundamental necessity for photocatalysis

Suresh Sagadevan, K. Pradeev Raj, Zaira Zaman Chowdhury, Mohd. Rafie Bin Johan, Fauziah Abdul Aziz, Preeti Singh, J. Anita Lett, and Jiban Podder

Abstract

A Brief Overview on Physio-Chemical Aspects of TiO2 & its Nano-carbon Composites for Enhanced Photocatalytic Activity

Md. Rakibul Hasan, Zaria Zaman Chowdhury, Suresh Sagadevan, Rahman Faizur Rafique, Wan Jefry Basiron, Md. Abdul Khaleque, Jiban Podder

Abstract

Applied Engineering Physics: Electricity and Magnetism

Dr. Jiban Podder

Abstract

Laboratory Personel

Research Projects

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    Principal Investigator

    Synthesis, characterization and fabrication of nanostructured thin films based gas sensor for environmental applications

    Ministry of Science and Technology, Govt. of Bangladesh

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    Principal Investigator

    2nd phase: Set-up of a spin coating system for multijunction nanostructured thin film for high efficiency solar cells and gas sensor applications

    Ministry of Science and Technology, Govt. of Bangladesh /2018-2019.

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    Principal Investigator

    1st phase: ‘‘Set-up of a spin coating system for multijunction nanostructured thin film for high efficiency soalr cells and gas sensor applications’

    Ministry of Science and Technology, Govt. of  Bangladesh2017-2018.

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    Principal Investigator

    Role of Transition Metal Doping on the Structural, Optical, Electrical and Magnetic Properties of CuO Nano-particles

    University Grants Commission, Govt. of Bangladesh/2017-2018.

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    Principal Investigator

    Up-gradation of the spray pyrolysis deposition unit and electrical measurement set up for synthesis and characterization of semiconductor thin films for photo-voltaic applications.

    Ministry of Science and Technology, Govt. of Bangladesh/2009-2010.

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    Principal Investigator

    Design and Construction of a Gas Sensitivity Measurement Setup and Testing Gas Sensitivity of Metal Oxide Nanostructured Thin Films

    Bangladesh University of Engineeringf and Technology

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    Principal Investigator

    Design and Construction of a Gas Sensitivity Measurement Setup and Testing Gas Sensitivity of Metal Oxide Nanostructured Thin Films

    Bangladesh University of Engineeringf and Technology/2020-2021.

At My Office

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