A5101504110- Conducting polymers and applications
- Polymer Nanocomposite Synthesis and Irradiation
- Carbon Nanotubes in Composites
- Microstructure and mechanical properties
- Advanced Sensor and Energy Harvesting Materials
- Diamond and Carbon-based Materials Research
- Metal and Thin Film Mechanics
- Transition Metal Oxide Nanomaterials
- Force Microscopy Techniques and Applications
- X-ray Diffraction in Crystallography
- Nonlocal and gradient elasticity in micro/nano structures
- Analytical Chemistry and Sensors
- Numerical methods in engineering
- Advanced Battery Materials and Technologies
- Catalysis and Oxidation Reactions
- Crystallization and Solubility Studies
- Thermoelastic and Magnetoelastic Phenomena
- Catalytic Processes in Materials Science
- Dielectric materials and actuators
- Advanced Thermoelectric Materials and Devices
- Magnetic Properties and Synthesis of Ferrites
- ZnO doping and properties
- Advanced battery technologies research
- Ferroelectric and Piezoelectric Materials
- Advancements in Battery Materials
National Institute of Technology Durgapur
2015-2023
Indian Association for the Cultivation of Science
2022
Indian Institute of Technology Madras
2021
Indian Institute of Technology Bombay
2016
Carnegie Mellon University
2011-2012
We report the evolution of thermoelectric and mechanical properties n-type SnSe obtained by iodine doping at Se site.
We present a novel technique to obtain higher or lower value of dielectric constant due the variation functional group on surface multiwall carbon nanotube (MWCNTs) for polyvinyl alcohol (PVA) grafted MWCNT system. have prepared PVA pristine and different types functionalized (-COOH, -OH, -NH2) nanocomposite films. The strong interfacial interaction between host matrix nanofiller is characterized by experimental techniques. frequency electrical transport properties composite films...
Numerical solutions of a one-dimensional model screw dislocation walls (twist boundaries) are explored. The is an exact reduction the three-dimensional system partial differential equations Field Dislocation Mechanics. It shares features both Ginzburg–Landau (GL)-type gradient flow and hyperbolic conservation laws, but qualitatively different from both. We demonstrate such similarities differences in effort to understand equation through simulation. A primary result existence spatially...
The dielectric constant, impedance spectroscopy, ac conductivity, and dc conductivity of Ni-doped diamond-like carbon (DLC) films are reported within a wide temperature frequency window. increases with temperature, possessing different activation regions. At higher temperatures, reversible semiconductor to metal transition is observed in the doped samples. Both conductivities increase Ni doping concentration. However, self-bias plays an important role conductivity. follows Jonscher's power...
At its inception, it was realized that harnessing the redox of "other" ion, namely, anion, allows us to envisage cathodes with a significantly higher (if not double) capacity currently available technologies.1,2,3 In this perspective, we have decluttered multitudes hypotheses been proposed thus far explain origin and processes involved in anion intercalation cathodes. By putting together different pieces experimental evidence gathered over last two decades, shown most convincing mechanism...
Tungsten oxide (WO3) nanoplates have been synthesized via hydrothermal method. The average crystallite size of the is 28.9 ± 0.5 nm. direct and indirect band gap WO3 observed. AC conductivity PVA-WO3 composite film has observed carrier transport mechanism follows correlated barrier hopping model. maximum height 0.1 eV. electric modulus reflects non-Debye type behaviour relaxation time which simulated by Kohlrausch-Willims-Watts (KWW) function.
Silver doped hydroxyapatite (Ag-HAp (2 mol.%)) nanoparticles of crystallite size 43 nm have been synthesized by employing facile hydrothermal method. The structural, morphological, compositional and electrical characteristics studied. detail dielectric properties at above room temperature shows a high permittivity value the material with very low loss which is much promising for future electronic applications. real response curves are least square fitted modified Cole-Cole equation to...
Method: Nanocrystalline powder of 10 mol% indium oxide doped ceria is synthesized by mechanically alloying the stiochiometric mixture CeO2 and In2O3 within 5 h milling in open air. Further up to 8 confirms stable cubic structure compound with increase time. Objective: Detailed microstructure have been characterized Rietveld refinement method using XRD data analyzing HRTEM images. Effect doping on electrical conductivity nanocrystalline studied measuring temperature range 300°C-600°C. The DC...
The flake-like copper oxide (CuO) nanoparticles have been synthesized by calcination method. XRD pattern and EDX elemental mapping confirms the formation of CuO nanostructure with average crystallite size 4.8 nm. weight loss material at 800 °C is only 8%. A broad UV-absorption peak arises 326 blue shift observed for nano-flake. direct optical band gap value 2.7 eV 4.7 eV. sharp intense in PL spectrum display 334