A5012670995- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- ZnO doping and properties
- Solid-state spectroscopy and crystallography
- Gas Sensing Nanomaterials and Sensors
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- 2D Materials and Applications
- Advancements in Battery Materials
- Advanced Semiconductor Detectors and Materials
- Advanced battery technologies research
- TiO2 Photocatalysis and Solar Cells
- Transition Metal Oxide Nanomaterials
- Semiconductor materials and interfaces
- Silicon and Solar Cell Technologies
- Carbon and Quantum Dots Applications
- Thin-Film Transistor Technologies
- Nanowire Synthesis and Applications
- Optical properties and cooling technologies in crystalline materials
- Silicon Nanostructures and Photoluminescence
- Luminescence Properties of Advanced Materials
- Electrocatalysts for Energy Conversion
Indian Institute of Science Bangalore
2022-2025
Cardiff University
2019-2023
Imperial College London
2021-2023
Savitribai Phule Pune University
2013-2021
Institute of Nano Science and Technology
2020
Indian Institute of Science Education and Research Mohali
2020
Indian Institute of Technology Bombay
2017
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...
Earth-abundant quaternary chalcogenides are promising candidate materials for thin-film solar cells. Here we have synthesized Cu2NiSnS4 nanocrystals and thin films in a novel zincblende type cubic phase using facile hot-injection method. The structural, electronic, optical properties studied various experimental techniques, the results further corroborated within first-principles density functional theory based calculations. estimated direct band gap ∼ 1.57 eV high absorption coefficient 106...
Mixed-halide CsPbI2Br perovskite is promising for efficient and thermally stable all-inorganic solar cells; however, the use of conventional antisolvent methods additives-based hole-transporting layers (HTLs) currently hampers progress. Here, we have employed hot-air-assisted deposition in ambient condition to obtain high-quality photoactive films extended device operation using metal cation doping dopant-free materials. Density functional theory calculations are used study structural...
NiO nanobelts synthesized using the hydrothermal method are explored for photocatalytic degradation of organic pollutants like RhB, MO, MB, and CV. The XPS analysis confirmed formation stoichiometric nanobelts. Few micrometer long cubic crystalline average thickness ∼75 nm delivered a bandgap 4.07 eV. FTIR studies revealed that mesoporous stable activities after controlled irradiation under xenon lamp. kinetic showed 79.1, 82.7, 76.7, 89% CV, RhB 140 min at rate constants (k) 0.007, 0.008,...
Sodium-ion batteries (SIBs) can develop cost-effective and safe energy storage technology for substantial demands. In this work, we have developed manganese oxide (α-MnO2) nanorods SIB applications. The crystal structure, which is crucial high-performance storage, examined systematically the metal cathode. intercalation of sodium into α-MnO2 matrix was studied using theoretical density functional theory (DFT) studies. DFT studies predict Na ions' facile diffusion kinetics through MnO2...
Lead-free double perovskites have emerged as stable and non-toxic alternatives to Pb-halide perovskites. Herein, the synthesis of Fe-doped Cs2 AgBiCl6 lead-free are reported that display blue emission using an antisolvent method. The crystal structure, morphology, optical properties, band stability were investigated systematically. Formation perovskite is confirmed by X-ray diffraction (XRD) photoelectron spectroscopy (XPS) analysis. XRD thermo-gravimetric analysis (TGA) shows has high...
Realizing photoactive and thermodynamically stable all-inorganic perovskite solar cells (PSCs) remains a challenging task within halide photovoltaic (PV) research. Here, dual strategy for realizing efficient inorganic mixed PV devices based on terbium-doped absorber, that is, CsPb1-x Tbx I2 Br, is reported, which undertakes bulk surface passivation treatment in the form of Br quantum dots, to maintain γ-phase under ambient conditions with significantly improved operational stability. Devices...
Potassium-ion batteries (KIBs) are promising energy storage devices owing to their low cost, environmental-friendly, and excellent K+ diffusion properties as a consequence of the small Stoke's radius. The evaluation cathode materials for KIBs, which perhaps most favorable substitutes lithium-ion batteries, is exceptional importance. Manganese dioxide (α-MnO2) distinguished by its tunnel structures plenty electroactive sites, can host cations without causing fundamental structural breakdown....
SnSe nanomaterials are challenging to use in sustainable energy production due difficulties phase-pure synthesis and efficient charge-carrier separation. We demonstrate a systematic facile method with an in-depth nucleation growth mechanism for the rational design of morphology-controlled SnSe-based cost-effective photocatalysts. Transient absorption spectroscopy measurements performed investigate kinetics microflowers (MFs), which exhibit free lifetime 6.2 ps. Although bare SnSe, CdSe, ZnSe...
Ternary Cu2SnS3 (CTS) is an attractive nontoxic and earth-abundant absorber material with suitable optoelectronic properties for cost-effective photoelectrochemical applications. Herein, we report the synthesis of high-quality CTS nanoparticles (NPs) using a low-cost facile hot injection route, which very simple method. The structural, morphological, optoelectronic, (PEC) heterojunction band alignment as-synthesized NPs have been systematically characterized various state-of-the-art...
Here, the first synthesis of Rb2AgBiI6 thin films in a cubic crystal structure using facile room temperature single-step solution process method were reported and explored their potential for optoelectronic applications.
Efficient and stable lead-free halide double perovskites (DPs) have attracted great attention for the future generation of electronic devices. Herein, we developed a doping approach to incorporate Fe3+ ions into Cs2NaBiCl6 crystal unit reveal crystallographic optoelectronic study Cs2NaBi1-xFexCl6 perovskite. We report simple solid-state mechanochemical method that has solvent-free, one-step, green chemistry synthesis phosphor. The analysis powder X-ray diffraction (XRD) data determines...
CdS, characterized by its comparatively narrow energy band gap (∼2.4 eV), is an appropriate material for prospective use as a photoanode in photoelectrochemical water splitting. Regrettably, it encounters several obstacles practical and large-scale applications, including issues such bulk carrier recombination diminished conductivity. Here, we have tried to address these challenges fabricating novel photoelectrode (ZnO/CdS) composed of one-dimensional ZnO nanorods (NRs) decorated with...
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...
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...