A5050792093- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Perovskite Materials and Applications
- Semiconductor materials and interfaces
- solar cell performance optimization
- Semiconductor Quantum Structures and Devices
- Photovoltaic System Optimization Techniques
- 2D Materials and Applications
- Solar Thermal and Photovoltaic Systems
- Nuclear materials and radiation effects
- Material Dynamics and Properties
- Conducting polymers and applications
- Nanowire Synthesis and Applications
- Photovoltaic Systems and Sustainability
- Nuclear Materials and Properties
- Thermal Expansion and Ionic Conductivity
- Advanced Thermoelectric Materials and Devices
- Integrated Energy Systems Optimization
- Extraction and Separation Processes
- Photonic Crystals and Applications
- Electrostatics and Colloid Interactions
- Copper-based nanomaterials and applications
- Thermodynamic and Structural Properties of Metals and Alloys
- Planetary Science and Exploration
- Mechanical and Optical Resonators
Jaypee Institute of Information Technology
2025
University of Freiburg
2024
Fraunhofer Institute for Solar Energy Systems
2024
Indian Institute of Technology Bombay
2022-2023
Maulana Azad Medical College
2021-2022
University of Delhi
2014-2022
Chandigarh University
2021
Amity University
2020
Amity University
2017
System Science Applications (United States)
1980
The recent discovery of natural biaxial hyperbolicity in van der Waals crystals, such as
Abstract: The gut microbiome, a complex and diverse microbial ecosystem, plays pivotal role in maintaining host health by regulating physiological balance preventing disease. Probiotics, live beneficial microorganisms, have shown potential modulating the microbiota through mechanisms such as competitive exclusion of pathogens, enhancement mucosal immunity, regulation metabolism. Recent advancements membrane simulations offer novel approach to studying these interactions at molecular level....
Abstract The diffusion of several solutes in liquid silver and tin is discussed terms the fluctuation model, modified critical theory ‘hole’ diffusion, assuming solute as a point charge equal to difference solvent atoms. additional coulombic interaction was calculated Thomas-Fermi approximation. In addition, temperature dependence also evaluated from self-consistent Hartree potential around an impurity charge. theoretical experimental values relative diffusivity its for various solutes, Ru,...
Tin Sulphide is a layered compound which retains its structure when deposited as thin films by thermal evaporation. The were found to have oriented growth with the direction of orientation changing film thickness. film's morphology was change orientation. poor conductivity thicker samples made it difficult make photocunductivity characterisation. However, unlike reported thinner showed photo-sensitivity be independent thickness and grain size high persistent photocurrent. With their...
Although the field of two-dimensional (2D) materials has democratized science by making high-quality samples accessible cheaply, due to atomically thin nature these systems, an integration with nanostructures is almost always required obtain a significant optical response. Traditionally, are fabricated via electron beam lithography or focused ion milling, which expensive, and large-area fabrication can be further time-consuming. In order overcome this problem, we report 2D semiconductors on...
Perovskite‐based triple‐junction solar cells have recently gained significant attention and are rapidly developing, thanks to the insights from advancement in its dual‐junction counterparts. However, employing perovskite materials multijunction with more than two junctions brings new challenges that not yet been addressed. One aspect is possibility of reverse bias breakdown subcells during operation triple–junction device. This relevant for because a higher voltage might drop at compared...
In the present work, indium tin oxide (ITO)/n-CdS/p-SnS/Au structured solar cells are fabricated with best conversion efficiency of 0.005%. A detailed investigation is made into cause poor and narrowed down to defects in p-SnS which effect junction neutral region cell. The junctions performance quantified using ideality factor found be related band misalignment. paper also investigates literature discusses efforts overcome problems this structure.
Interlayer excitons in two-dimensional semiconductor heterostructures show suppressed electron–hole overlap resulting longer radiative lifetimes as compared to intralayer excitons. Such tightly bound interlayer are relevant for important optoelectronic applications, including light storage and quantum communication. Their optical accessibility is, however, limited due their out-of-plane transition dipole moment. In this work, we design a complementary metal–oxide–semiconductor-compatible...
This work presents a comparative study of n-SnS and p-SnS active layers for increased solar cell efficiency. Tin sulphide thin films various thicknesses having p-type n-type conductivity were fabricated by thermal evaporation. Both type had the same (113) orientation crystal planes with constant tensile strain ~ 0.003 0.011, respectively. The persistent photocurrent was observed in all samples current's time decay decreasing increasing film thickness. Hole mobility thicker found to be...
Tin sulphide thin films of p‐type conductivity were grown on glass substrates. The refractive index the as calculated using both transmission and spectroscopic ellipsometry (SE) data. SE data was fit Tauc Lorentz model which showed that did not absorb for λ > 700 nm. variation in all with respect to wave‐ length, i.e. dispersion behaviour region < 1000 nm found follow Wemple‐Dedomenico (WDD) single oscillator model. optical properties be closely related structural films. Intrinsic...
p-SnS absorbing layers were grown by thermal evaporation on of various Zinc compounds, like ZnO and ZnS. This present work reports the J-V characteristics thus obtained p-SnS/ZnO p-SnS/ZnS heterojunctions. The pn junctions these structures did not show any photovoltaic activity, however a zener behaviour was observed in 3rd quadrant characteristics. Our analysis diodes suggest that reverse breakdown or voltage from dark can be used to estimate energy band diagram junction turn band-alignment...
Ellipsometry is a non-destructive, fast and accurate characterization technique used for determining the thickness optical constants of material. However, this method has drawback considering that experimentally measured data are not meaningful in itself one to interpret based on modelling making ellipsometry dependent model selection, computation power/time fitting. This makes ellipsometry, difficult method. it also presents wonderful opportunity apply various topics taught physics classes...