A5103090483- Advanced Photocatalysis Techniques
- Copper-based nanomaterials and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- ZnO doping and properties
- 2D Materials and Applications
- Perovskite Materials and Applications
- Photoreceptor and optogenetics research
- Gas Sensing Nanomaterials and Sensors
- Thin-Film Transistor Technologies
- Handwritten Text Recognition Techniques
- Image Retrieval and Classification Techniques
- Quantum and electron transport phenomena
- Silicon and Solar Cell Technologies
- Silicon Nanostructures and Photoluminescence
- Semiconductor materials and devices
- Photonic and Optical Devices
- Advanced Image and Video Retrieval Techniques
- Advanced Semiconductor Detectors and Materials
- Molecular Communication and Nanonetworks
- Neural Networks and Reservoir Computing
- Solid-state spectroscopy and crystallography
- Semiconductor Quantum Structures and Devices
- Vehicle License Plate Recognition
- Nuclear Physics and Applications
Savitribai Phule Pune University
2016-2025
KS Rangasamy College of Arts and Science
2024
Chhattisgarh Dental College & Research Institute
2024
Vignana Jyothi Institute of Management
2020
Indian Institute of Science Bangalore
2011-2013
Dayalbagh Educational Institute
2005-2012
PES University
2009
University of Oxford
1979-2006
Colorado State University
1994
Arizona State University
1985
This study reports the synthesis of ZnO nanosheets, nanorods, and nanotubes through electrodeposition, followed by deposition MoS2 layers using RF magnetron sputtering to create ZnO/MoS2 heterostructures. The morphological structural properties these materials were characterized various techniques, including X-ray diffraction, Raman spectroscopy, scanning electron microscopy, transmission photoelectron UV–visible spectroscopy. photoelectrochemical (PEC) performance synthesized...
Recent advances in single-view reconstruction (SVR) have been modelling power (curved 2.5D surfaces) and automation (automatic photo pop-up). We extend SVR along both of these directions. increase several ways: (i) represent general 3D surfaces, rather than Monge patches; (ii) describe a closed-form method to reconstruct smooth surface from its image apparent contour, including multilocal singularities ("kidney-bean" self-occlusions); (iii) show how incorporate user-specified data such as...
A promising method for producing hydrogen from solar energy and transforming it into chemical fuel is photoelectrochemical (PEC) water splitting. This ecologically friendly process can also avoid crises. Herein, we present the electrodeposition bath deposition methods used to create ZnO-nanorod/CdS nanoparticle (ZnO/CdS) heterostructures. The structural, optical, morphological, PEC properties are investigated. UV–Visible spectroscopy analysis reveals ZnO/CdS films have absorption edges in...
Abstract We report the synthesis of tungsten sulfide (WS 2 ) films using RF‐magnetron sputtering at different RF powers. X‐ray diffraction (XRD) data confirm hexagonal crystal structure WS with an average crystallite size ∼44.54 Å. With increased power, preferred orientation crystallites shifts from (002) to (100). Linear sweep voltammetry (LSV) was used assess Photoelectrochemical (PEC) activity films. The film deposited 150 W demonstrated highest photocurrent density 5.44 mA/cm . also...
DC and ac electrical conductivities of silicon dioxide thermally grown on p‐ (boron‐doped) n‐type (phosphorous‐doped) have been measured in the temperature range 25°–1100°C. Total dc varied from 10−9 to 10−16 Ω−1cm−1 25°–960°C. Arrhenius plots for total both substrates exhibit two regions. Below 450°C, were independent are suggested be governed by impurities. Above increased with increase temperature. The activation energies conduction 500°–960°C estimated 1.65 2.10 eV silicon, respectively....
We show all-optical switching of an input infrared laser beam at 1310 nm by controlling the photoinduced retinal isomerization to tune resonances in a silica microsphere coated with three bacteriorhodopsin (BR) protein monolayers. The tunable resonant coupler re-routes between two tapered fibers 50 μs using low power (<200 μW) green (532 nm) and blue (405 pump beams. basic configuration has been used design computing circuits, namely, half full adder/subtractor, de-multiplexer,...
Metal chalcogenide indium selenide (In2Se3) is attracting increasing research interest for photodetector applications due to its excellent photoresponse and superior stability under ambient conditions. However, the temperature-dependent performance of In2Se3-based photodetectors has rarely been reported. Here, <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\gamma $ </tex-math></inline-formula> -In2Se3...
Herein, we report the synthesis of different ZnO nanostructures using chemical bath deposition method by changing molar concentration zinc precursor.The synthesized films were characterized X-ray diffraction, UV-Visible spectroscopy, and scanning electron microscopy for physico-chemical characterization.The obtained sensitized with melanin.We found that melanin incorporation in extended absorbance spectra into visible region.The maximum photocurrent density was recorded film deposited 0.2 M....
Herein, we report synthesis of highly stable, Pb-free bismuth iodide, stoichiometric methylammonium iodide and non-stoichiometric perovskite thin films for photodetector applications.
Abstract Inorganic perovskites hold immense promise for optoelectronic applications, but their performance is often hindered by defects and trap states introduced during solution‐based processing. This study demonstrates a facile approach to mitigate these challenges employing in situ polyvinyl pyrrolidone (PVP) passivation the hydrothermal growth of TiO 2 nanorods, improving interface with CsPbI Br (CPIB) perovskite. X‐ray diffraction analysis confirms formation nanorods crystallite size...
A competition was organized by the authors to detect text from scene images. The motivation look for script-independent algorithms that and extract it images, which may be applied directly an unknown script. had four distinct tasks: (i) localization (ii) segmentation images containing one or more of Kannada, Tamil, Hindi, Chinese English words. (iii) (iv) Kannada word recognition task There were totally submissions tasks. For other two tasks, we have evaluated algorithms, namely nonlinear...
Abstract Solution‐processed inorganic perovskites cause chemical and structural defects unfavorable for photodetector application. Using a binary solvent, in CsPbI x Br y (CPIB) perovskite are passivated with poly 4‐vinylpyridine (PVP) Poly methyl methacrylate (PMMA) polymers. X‐ray photoelectron spectroscopy FTIR spectra reveal Lewis base‐acid interaction between Pb 2+ polymer, confirming the passivation of CPIB perovskite. Scanning electron microscopy analysis shows dual‐surface morphology...
Abstract The results of quantum transport investigations in quasi‐one‐dimensional systems assumed to be cylindrical geometry are presented. Quantum size effect is important when the de Broglie wavelength (λ D ) confined electrons becomes comparable radius R 0 geometry. In extreme quantum‐limit, λ ≫ , resistivity found proportional 2 / A where = π area cross‐section. Similar behavior for a strong magnetic field, ( hc eB 1/2 πλ cyclotron orbit field strength B . thin wires analogous those field.