A5052520140- Advanced Thermoelectric Materials and Devices
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Thermal Radiation and Cooling Technologies
- Solid-state spectroscopy and crystallography
- Transition Metal Oxide Nanomaterials
- Glass properties and applications
- Thermal properties of materials
- Graphene research and applications
- Gas Sensing Nanomaterials and Sensors
- Advancements in Battery Materials
- Luminescence Properties of Advanced Materials
- Photochemistry and Electron Transfer Studies
- Fuel Cells and Related Materials
- Perovskite Materials and Applications
- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Sensors
- Carbon Nanotubes in Composites
- Polymer Nanocomposite Synthesis and Irradiation
- Chalcogenide Semiconductor Thin Films
- Magnetism in coordination complexes
Bhabha Atomic Research Centre
2017-2020
Indian Institute of Management Rohtak
2013
Semi-crystalline polypyrrole (PPy) nanotubes were synthesized through a chemical polymerization route using methyl orange-ferric chloride (MO-FeCl3) as template for growth. The thermoelectric properties of these PPy have been studied in the temperature range 300–380 K after treatment with various dopants such hydrochloric acid (HCl), p-toluene-sulphonic monohydrate (ToS), and tetrabutyl ammonium hexaflurophosphate (PF6). It has observed that affect electrical thermal transport different...
Carbon nanotubes are promising candidates for thermoelectric power generation because of their one-dimensionality mediated high Seebeck coefficient, electrical conductivity with added advantages flexibility, light weight, and scalability. We report the temperature-dependent properties single-walled carbon nanotube (SWCNTs) films. The SWCNTs films exhibit p-type metallic conduction coefficient (∼69.5 μVK−1) moderate (∼76 Scm−1). low thermal (∼0.1 Wm−1 K−1) due to phonon scattering at...
The present work demonstrates a totally radical change in conduction nature from typical p-type to n-type through ionic transport FeCl3 doped free-standing poly(3-hexylthiophene) (P3HT) films. thermodiffusion of Cl− ions generated giant negative Seebeck coefficient (∼2.7 mV/K) and moderately high electrical conductivity (∼1 S/cm); an unprecedented level polymers. A thermoelectric power generator fabricated using these P3HT films delivered output 25 μW with open circuit voltage 128 mV for ΔT...
Gas sensing properties of devices fabricated using ZnO nanowires/nanobelts (NS) aligned between two electrodes dielectrophoresis technique were investigated. nanostructures synthesized by carbothermal method. The characterized as gas sensors and showed high sensitivity for detection NO at room temperature. Typical sensor response, defined the relative change in resistance, due to introduction was found be approximately 500% 40 ppm gas. average response recovery times about 30 s 1 min...
Tin selenide (SnSe) has emerged as a surprising new p-type thermoelectric material with exceptionally low thermal conductivity, leading to impressive performance. However, the presence of thermally conducting & electrically insulating SnO2 at grain boundaries SnSe supresses its desirable properties. In this work we report temperature dependence Seebeck coefficient for polycrystalline which exhibits an unusual reversible change in conduction from n- ~565 K. The n-type near room is attributed...
Abstract Tin selenide (SnSe) has emerged as a surprising new p-type thermoelectric material with exceptionally low thermal conductivity, leading to impressive performance. However, the presence of thermally conducting & electrically insulating SnO 2 at grain boundaries SnSe supresses its desirable properties. In this work we report temperature dependence Seebeck coefficient for polycrystalline which exhibits an unusual reversible change in conduction from n- ~ 565 K. The n-type near room...
The field of thermoelectric power generation is now looking towards conducting polymers (CPs) as novel materials for harnessing low-temperature (≤ 150°C) waste heat into useful electrical power. For instance, PEDOT:PSS due to its high conductivity and water soluble nature has emerged a promising substitute expensive, toxic rigid inorganic counterparts room temperature thermoelectrics. Therefore, the present work been focussed on improvement performance through use organic solvent ethylene...