Antimony telluride nanoplates for thermoelectric applications

• Main Author: Koh, Clarissa Wei Shan.
• Other Authors: School of Materials Science and Engineering
• Format: Final Year Project
• Language: English
• Published: 2009
• Subjects: DRNTU::Engineering::Nanotechnology
• Online Access: http://hdl.handle.net/10356/15318
• Institution: Nanyang Technological University

This project focuses on a novel solvothermal synthesis method of Antimony Telluride nanoplates in the pure and doped forms for thermoelectric applications. As compared with its bulk counterpart, Sb2Te3 has numerous added advantages, mainly attributed to its quantum confinement effect. The nanoplates were tested for electrical resistivity and Seebeck coefficient (ZT) to determine improvements in thermoelectric properties and possible device applications. Numerous elements have been test-doped into the Sb2Te3 nanocrystals however experiments were unsuccessful. The failure to further improve the thermoelectric properties of Sb2Te3 nanocrystals may be accounted for by improper synthesis techniques and/or wrong choice of doping element.