Krishna, Anuj and Vijayan, N. and Singh, Budhendra and Thukral, Kanika and Maurya, K. K. (2016) Crystalline perfection and mechanical investigations on vertical Bridgman grown Bismuth telluride (Bi2Te3) single crystals for thermoelectric applications. Materials Science and Engineering: A, 657. pp. 33-37. ISSN 0921-5093

PDF - Published Version Restricted to Registered users only Download (1506Kb) | Request a copy

Abstract

High efficiency thermoelectric materials plays a vital role in power generation and refrigeration applications. Bismuth telluride (Bi2Te3) is one among them. In the present work single crystal of bismuth telluride was grown using vertical Bridgman technique. The phase of grown crystals was analysed using a powder X-ray diffractometer. Quality of the grown crystal was assessed by using high resolution X-ray diffractometer and observed that it is fairly good. Further mechanical investigations on grown crystal was carried out using nano-indentation technique and various mechanical properties like hardness, stiffness and Young's modulus were evaluated. Observed results clearly indicate its suitability for thermoelectric applications.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Uncontrolled Keywords:	X-raydiffraction Mechanical properties Nano-indentation Crystal growth Bridgman technique
Subjects:	Materials Science Metallurgy & Metallurgical Engineering Nanoscience/ Nanotechnology
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	16 Nov 2017 11:21
Last Modified:	16 Nov 2017 11:21
URI:	http://npl.csircentral.net/id/eprint/2173

Actions (login required)

View Item