A5058874892- Ion-surface interactions and analysis
- ZnO doping and properties
- Semiconductor materials and devices
- Gold and Silver Nanoparticles Synthesis and Applications
- Silicon Nanostructures and Photoluminescence
- Glass properties and applications
- Optical Coatings and Gratings
- Semiconductor materials and interfaces
- Luminescence Properties of Advanced Materials
- Integrated Circuits and Semiconductor Failure Analysis
- Nonlinear Optical Materials Studies
- 2D Materials and Applications
- Quantum Dots Synthesis And Properties
- Gas Sensing Nanomaterials and Sensors
- Physics of Superconductivity and Magnetism
- Diamond and Carbon-based Materials Research
- Ferroelectric and Piezoelectric Materials
- Transition Metal Oxide Nanomaterials
- Electronic and Structural Properties of Oxides
- Nanowire Synthesis and Applications
- Silicon and Solar Cell Technologies
- Plasmonic and Surface Plasmon Research
- Ga2O3 and related materials
- Copper-based nanomaterials and applications
- Chalcogenide Semiconductor Thin Films
National Institute of Science Education and Research
2016-2025
Homi Bhabha National Institute
2017-2024
Center for Interdisciplinary Studies
2022-2024
Global University
2024
Naval Science & Technological Laboratory
2021-2022
Institute for Plasma Research
2021
Indian Institute of Technology Kharagpur
2021
Institute of Physics, Bhubaneshwar
2017-2018
KIIT University
2018
Indian Institute of Technology Bhubaneswar
2017
We review the performance and applications of an extreme ultraviolet interference lithography (EUV-IL) system built at Swiss Light Source Paul Scherrer Institut (Villigen, Switzerland). The interferometer uses fully coherent radiation from undulator source. 1-D (line/space) 2-D (dot/hole arrays) patterns are obtained with a transmission-diffraction-grating type interferometer. Features sizes in range one micrometer down to 10-nm scale can be printed variety resists. highest resolution 11-nm...
After reaching a threshold doping level of Mn, it is possible to alter from two photon absorption saturable in ZnO nanorods.
Abstract Zinc oxide nanoparticles (ZnO NPs) were synthesised using Tabernaemontana divaricata flower extract (TFE) in different weight percentages by facile, eco-friendly and cost-effective green synthesis method. Formation structure of the ZnO NPs studied powder XRD, FT−IR, Raman TEM studies. The crystals formed are hexagonal wurtzite with biological functional groups attached. Average crystallite size (17.5−23.3 nm) was obtained from analysis XRD data which increased increase TFE amount...
Densely packed plasmonic particle arrays are investigated for biosensing applications. Such exhibit interparticle optical coupling creating a strong field between the particles, which is useful sensing purposes. The sensor properties, such as bulk sensitivity, layer and depth of sensitivity with aid multiple multipole program. Sensitivity to analyte low concentration also examined by dynamic adsorption processes. detectable limit streptavidin within 3000 s in detection system expected from...
We present a simple and cost-effective method for the fabrication of antireflective surfaces by self-assembly block copolymers subsequent plasma etching. The create randomly oriented periodic patterns, which are further transferred into fused silica substrates. reflection on patterned surface is reduced to well below 1% in ultraviolet, visible, near-infrared ranges exploiting subwavelength nanostructures with periodicities down 48 nm. show that choosing appropriate pattern transfer...
ABSTRACT A three‐phase water‐soluble nanocomposite of single wall carbon nanotube/silver nanoparticle hybrid fibers embedded in sulfonated polyaniline has been synthesized by a simple chemical solution mixing process. The characterized high resolution electron microscopy, X‐ray diffractometry, FTIR spectroscopy, Raman and thermogravimetric analysis. Optical electrical characteristics the have determined UV–vis absorption photoluminescence four‐probe conductivity measurement. surface plasmon...
We report the spontaneous formation of superconducting NiBi3 phase in thermally evaporated Ni-Bi bilayer films. High reaction-diffusion coefficient Bi is believed to drive during deposition on Ni film. Cross sectional transmission electron microscopy and glancing incidence X-ray depth profiling confirmed presence throughout top layer. Superconducting transition at ∼3.9 K, close bulk value, was by transport magnetization measurements. The bilayers were irradiated with varying fluence 100 MeV...
Abstract CoMn 2 O 4 , known for its extensive range of applications, has been subject to limited investigations regarding structure dependent magnetic properties. Here, we have examined the properties nanoparticles synthesized through a facile coprecipitation technique and are characterized using x-ray diffractometer, photoelectron spectroscopy (XPS), RAMAN spectroscopy, transmission electron microscopy measurements. Rietveld refinement diffraction pattern reveals coexistence 91.84%...
The development of renewable energy technologies is critical to addressing global challenges, such as climate change and ensuring sustainability. One promising approach photocatalytic water splitting, which converts solar into hydrogen fuel. 2D materials, especially van der Waals heterostructures, have shown great potential for enhancing activity. In this study, we investigated the effects vertical, uniaxial, biaxial strain on electronic band gap edge positions C2N/MoS2 heterostructure...
Defects and disorders play as controlling parameters to alter the electronic structure of TiO 2 nanostructures significantly influence their electronic, magnetic, linear, nonlinear optical (NLO) properties.
Abstract Field-dependent resistance of a magnetic layer is often used as the basic tunable operational entity in several spintronics applications. In this work we demonstrate that magnetoresistance (MR) classic ferromagnetic Ni can be tuned significantly by controlling surface spin scattering electrons, manipulating disordered spins via proximity effect. This was achieved drop casting molecules well-known single molecule magnet Mn12-ac on micro-tracks thin (∼12 nm) film. We found significant...