Programme

P.2 -- Poster, VCTP-49

Date: Wednesday, 31 July 2024

Time: 08:30 - 10:00

Transport coefficients of semiconductor bismuth oxytelluride

Nguyen Anh Son (1,2), Do Quynh Anh (3), Tran Van Quang (1)

(1) Faculty of Electronic and Telecommunications, VNU University of Engineering and Technology, Hanoi, Vietnam; (2) Vietnam Metrology Institute; (3) Nanyang Technological University

Semiconductor bismuth telluride is emerging as a promising candidate for thermoelectric applications due to its impressively low lattice thermal conductivity. In this study, we present the results of calculations on the transport coefficients of this material. We discuss the relationship between electronic ground states and transport properties, characterized by the Seebeck coefficient, electrical conductivity, electronic thermal conductivity, and power factor. Our analysis yields compelling results demonstrating the dependence of transport properties on doping levels and temperature. This discovery highlights a significant challenge in improving the thermoelectric figure of merit at elevated temperatures.

Presenter: Đỗ Quỳnh Anh