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A large amount (~60%) of energy is wasted in the form of heat, released directly to the environment
Solution
A thermoelectric generator (TE) provides direct conversion of heat into electrical energy
TE figure of Merit (ZT)
S – Seebeck coefficient
σ - Electrical conductivity
κ - Thermal conductivity
h - Planks constant
Transport Parameters
The interdependencies of transport parameters in materials make improving ZT without deteriorating other factors challenging.
HEOs: Achieving ultralow thermal conductivity
HEOs: Achieving ultralow thermal conductivity
Oxide-based thermoelectric materials have the advantages of high-temperature stability, low toxicity and low processing cost compared to other metal-based systems.
HE effects adds up lattice distortion and creates high-order phonon scattering sites, resulting in reduced thermal conductivity.
Publication
Vivek Kumar, Sudha Saini, Tanmoy Maiti; Study of charge transport mechanism in Ba doped Sr2CrMoO6 double perovskite mixed ionic electronic conductor. Journal of Applied Physics 28 April 2023; 133 (16): 164104. https://doi.org/10.1063/5.0141080
V. Kumar, R. Banerjee, S. Mukherjee, P. Mondal, A. Ganguly, T. Maiti, Thermoelectric study of A-site populated (Ca0.2Bi0.2Sr0.2La0.2Pr0.2)MnO3 high entropy manganate, J. Alloys Compd. 1032 (2025) 181100. https://doi.org/10.1016/j.jallcom.2025.181100
Poster(s)
41th International Conference on Thermoelectrics (& 7th Asian Conference on Thermoelectrics) ICT/ACT2025, poster entitled "Improved thermoelectric performance of SrTiO3-based entropy-stabilized perovskite oxide for high-temperature waste heat recovery." Sendai ,Japan.
World Conference on Thermoelectrics and Materials (WCT-2023), third position in a poster entitled “Thermoelectric properties of Manganate based high entropy oxide.” Jaipur, Rajasthan
4th International Workshop on High Entropy Materials (IWHEM 2023), poster entitled “Thermoelectric properties of Manganate based high entropy oxide.” BARC, Mumbai
Padarth, Research Scholar’s Day-2023 (RSD, IIT Kanpur), poster presentation entitled “Thermoelectric study of High Entropy Oxides.” IITK, Kanpur
Research/Internship Experience(s)
Junior Research Fellow, Birla Institute of Technology, Mesra Oct 2021–Dec 2021
Development of optical coherence elastography and confocal laser scanning ophthalmoscope
for biological imaging
Principal Investigator: Dr. Raju Poddar
Master’s Project Trainee, National Metallurgical Laboratory, Jamshedpur Nov 2020–Apr 2021
Dissertation topic: Study of WSe2-based nanocomposite for photocatalytic hydrogen evolution
Supervisor(s): Dr. G. P. Singh and Dr. T. Mishra
Research Intern, National Metallurgical Laboratory Jamshedpur May–July 2019
NiCoAl-layered triple hydroxide electrochemical supercapacitor for energy storage
Supervisor: Dr. Suprabha Nayar
Research Intern, National Metallurgical Laboratory Jamshedpur Dec 2018–Jan 2019
Research Intern, National Metallurgical Laboratory Jamshedpur Dec 2018–Jan 2019
Microplasma generation using graphene oxide-based barrier
Supervisor: Dr. Jay Chakraborty
Education
Education
Ph.D., Prime Minister Research Fellow, Materials Science and Engineering, Indian Institute of Technology Kanpur 9.0/10 Jan 2022-present
Ph.D., Prime Minister Research Fellow, Materials Science and Engineering, Indian Institute of Technology Kanpur 9.0/10 Jan 2022-present
Five-year Integrated M.Tech in Nanotechnology, Central University of Jharkhand, Ranchi 8.84/10 2016-2021
Five-year Integrated M.Tech in Nanotechnology, Central University of Jharkhand, Ranchi 8.84/10 2016-2021
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