A Review on Recent Enhancement in Thermoelectric Properties in Telluride Compounds

Volume 7 Issue 1 April - June 2019

Research Paper

A Review on Recent Enhancement in Thermoelectric Properties in Telluride Compounds

M. Kumari*, Y. C. Sharma**

*Research scholar, Department of Physics, Vivekananda Global University, Jaipur, Rajasthan, India.

**Dean, Research & Development and Professor of Physics, Vivekananda Global University, Jaipur, Rajasthan, India.

Kumari, M., and Sharma, Y.C. (2019). A Review on Recent Enhancement in Thermoelectric Properties in Telluride Compounds. i-manager’s Journal on Material Science , 7(1), 12-20. https://doi.org/10.26634/jms.7.1.15042

Abstract

Global Warming and energy crisis are the major problems of today's world. So, the uses of thermoelectric devices are very demanding. The materials used in thermoelectric devices to generate electricity from waste heat emitted by vehicles, industries are known as thermoelectric materials. But unfortunately a small part of waste heat is used for the generation of electricity and rest part is lost as waste heat due to low efficient TE devices. So, it's a challenging task for researchers to develop new thermoelectric materials with high efficiency. On review basis telluride based alloys are known to be best thermoelectric materials. Efficiency of TE devices depends on a dimensionless quantity termed as Figure of merit (ZT) of a material which indicates the ability of producing electricity from waste heat. Greater is the value of ZT indicates highly efficient device and larger the production of electricity. So, present work uses the strategies to enhance the efficiency of thermoelectric materials by fabricating super lattice structures of Bi2Te3 and Sb2Te3 compounds and by doping with Se in these compounds may increase the value of ZT. So, finally it can be concluded that present experimental work explores the improved thermoelectric properties of these materials with many future aspects & applications.