A5031104739- Semiconductor Quantum Structures and Devices
- Advanced Semiconductor Detectors and Materials
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Perovskite Materials and Applications
- Organic Electronics and Photovoltaics
- GaN-based semiconductor devices and materials
- Quantum Dots Synthesis And Properties
- Semiconductor materials and devices
- Organic Light-Emitting Diodes Research
- Semiconductor materials and interfaces
- Semiconductor Lasers and Optical Devices
- Quantum and electron transport phenomena
- Thin-Film Transistor Technologies
- Advancements in Semiconductor Devices and Circuit Design
- solar cell performance optimization
- Graphene research and applications
- Supercapacitor Materials and Fabrication
- Photonic and Optical Devices
- Silicon and Solar Cell Technologies
- Advanced battery technologies research
- Advancements in Battery Materials
- Nanomaterials for catalytic reactions
- Low-power high-performance VLSI design
- Photocathodes and Microchannel Plates
Bangladesh Atomic Energy Commission
2025
University of Calcutta
2007-2024
National Institute of Technology Arunachal Pradesh
2015-2024
This present work emphasizes the numerical modeling of lead-free methylammonium tin tri-iodide (MASnI <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> )-based perovskite solar cells (PSCs) under optimizing preconditions. The prior selection material MASnI is feasible for a more extended absorption spectrum due to smaller bandgap 1.3 eV than higher lead (MAPbI PSC and factor lesser toxicity. Furthermore, enhance efficiency device,...
The approach emphasizes dispersing Ag@CdS (ACS) core@shell (CS) nanocrystals (NCs) in polyvinyl alcohol (PVA) and activating them at room temperature via a straightforward wet chemical co-precipitation process. improved performance of ACS NCs is due to their CS shape, surface plasmon resonance (SPR), quantum confinement phenomena. UV-Vis PL spectroscopy revealed variations optical properties, including tunable band gap CdS dots, indicating potential as nanoelectronic (NE) devices. XRD, TEM,...
The article describes the synthesis of copper oxide decorated amine functionalized graphene (AGO) composites at four different temperatures, i.e., 50, 85, 120, and 155 °C. process involves generation AGO by chemical functionalization using −NH2 groups to anchor Cu2+ ions via coordinate bonds. Reduction results in Cu+ on surface AGO, which is confirmed XRD TEM. composition nanocomposites were XPS FTIR analyses. dielectric measurements display a decrease constant with an increase frequency,...
InP1−xBix epilayers (x ≥ 1.2%) on InP (001) are grown reproducibly by liquid phase epitaxy with conventional solution baking in a H2 environment. The Bi composition and surface morphology of the layers studied secondary ion mass spectroscopy atomic force microscopy, respectively. High-resolution x-ray diffraction is used to characterize lattice parameters crystalline quality layers. 10 K photoluminescence measurements indicate three clearly resolved peaks undoped band-to-band transition at...
Abstract Organic solar cells (OSCs) exhibit potential in low-emissive photovoltaic (PV) technology by enhancing excitonic absorption, higher trap-assist recombination, lower excitons diffusion length (L n,p ), and carrier lifetime ( τ ). The main challenge remains the asymmetric mobility μ ) of organic absorbing layer (OAL) various physical factors affecting efficiency η This effort has been explored through attributes different fullerene derivatives based on binary blends OAL thickness that...
Abstract The effort emphasizes the numerical analysis of different transparent conducting oxides (TCOs) perspectives, which include ITO, FTO, AZO, and IZO anode-based organic solar cells (OSCs) with drift-diffusion approach. prior selection aluminum-doped zinc oxide (AZO) as TCO is feasible for more extended transparency antireflection due to a tailored absorption wavelength <380 nm factors higher mechanical flexibility, low-cost processing, realistic performance at lower temperatures. To...