Bikram Keshari Das

ORCID: 0000-0003-2904-0842
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About
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Research Areas
  • ZnO doping and properties
  • Gas Sensing Nanomaterials and Sensors
  • Copper-based nanomaterials and applications
  • Microwave Dielectric Ceramics Synthesis
  • Dielectric properties of ceramics
  • Electrical and Thermal Properties of Materials
  • Ferroelectric and Piezoelectric Materials
  • Cold Atom Physics and Bose-Einstein Condensates
  • Quantum, superfluid, helium dynamics
  • Atomic and Subatomic Physics Research
  • Ga2O3 and related materials
  • Advanced Chemical Physics Studies
  • Advanced Photocatalysis Techniques
  • Advancements in Solid Oxide Fuel Cells
  • Quantum Dots Synthesis And Properties
  • Water Quality Monitoring and Analysis
  • Nanoparticles: synthesis and applications
  • Ammonia Synthesis and Nitrogen Reduction
  • Advanced Nanomaterials in Catalysis
  • Hybrid Renewable Energy Systems
  • Analytical Chemistry and Sensors
  • Nuclear materials and radiation effects
  • Graphene and Nanomaterials Applications
  • Water Quality Monitoring Technologies

Institute of Social Sciences
2020-2024

KIIT University
2014-2018

Indian Institute of Technology Kharagpur
1982

Birla Institute of Technology, Mesra
1973-1974

Birla Institute of Technology and Science, Pilani
1973

This work encapsulates recent research and advancements in the realm of green hydrogen production through water splitting, a pivotal pathway for sustainable clean energy. As global community seeks alternatives to conventional fossil fuels, emerges as promising energy carrier, particularly when derived from renewable resources. paper reviews state-of-the-art technologies, focusing on both electrochemical photoelectrochemical methods employed splitting. Electrochemical approaches, encompassing...

10.1080/15435075.2024.2428365 article EN International Journal of Green Energy 2025-01-02

This work reports the temperature and frequency dependence electrical properties of Ca doped ZnO (Zn1-xCaxO, x = 0.01) nanoceramic synthesized by solid state reaction method.The X-ray spectra show that powder has hexagonal wurtzite structure with space group P 63mc.The average crystallite size decreases doping.The increase in oxygen positional parameter (u) indicates lattice distortion crystal structure.Doping caused a slight shift (101) plane peak towards lower diffraction angle.The...

10.12693/aphyspola.130.1358 article EN Acta Physica Polonica A 2016-12-01

Cu doped ZnO nanoparticles abbreviated as Zn1–xCuxO (x = 0, 0.01 and 0.03) were synthesised by high energy ball milling (HEBM) technique. The structural, morphological, optical dielectric properties of the carried out XRD, FTIR, UV-Vis impedance analyser, respectively. incorporation dopant into hexagonal wurtzite structure has been verified X-ray diffraction (XRD). effect doping on structural bonding Fourier transformation infrared (FTIR) spectra. XRD spectra shows that all are single phase,...

10.1504/ijnbm.2017.090131 article EN International Journal of Nano and Biomaterials 2017-01-01

Ca doped ZnO (Zn 1−x x O, = 0,0.01 and 0.02) ceramics were synthesized by simple solid state reaction route. Structural characterization was carried out X-ray diffraction (XRD) technique. The modulus ac conductivity of the analyzed an impedance analyzer. chemical composition confirmed EDX. analysis XRD peaks revealed hexagonal wurtzite structure, P6 3 mc space group for all compositions. absence extra in patterns indicate that are single phase. crystallite size decreases with doping also...

10.1166/asl.2018.12181 article EN Advanced Science Letters 2018-06-26

Single phase polycrystalline with = 0, 0.01 and 0.02 were synthesized by conventional solid state reaction method. The X-ray diffraction shows that the ceramic samples has hexagonal Wurtzite structure a space group of p6 3 mc average crystallite size in range 52 - 88 nm. dielectric electrical properties studied within temperature 30 °C to 500 under air atmosphere as function frequency (10 kHz). grain interior boundary have been using impedance spectroscopy follow non-Debye relaxation...

10.4028/www.scientific.net/amr.938.63 article EN Advanced materials research 2014-06-01

Strontium doped Zinc Oxide (Zn1-xSrxO) nanoceramics has been successfully prepared by solid state reaction method with different doping concentration (x=0-0.03). The modulus spectroscopy of the synthesized sample carried out an impedance analyzer. formation phase confirmed XRD and was found to be single phase, wurtzite structure, belong space group P63mc for all compositions. transition from long short range mobility charge carriers observed in Sr ZnO samples. A change shape size spectrum...

10.1063/5.0125876 article EN AIP conference proceedings 2023-01-01

10.1007/s10854-024-13969-4 article EN Journal of Materials Science Materials in Electronics 2024-12-01
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