Work

Doping Effects to the Thermoelectric Power Factor of Bi2Te3 Thin Films

Year: 2020

Type: article

Abstract: Thermoelectric Bi2Te3 thin films were synthesized by a co-sputtering method at 300℃. A Fe dopant was considered to enhance the thermoelectric properties of the system. The Seebeck coefficient of the Fe-doped films increased whereas the electrical conductivity decreased. As a result, the power factor of the system increased owing to the enhanced Seebeck coefficient. Grain growth inhibition was detected in the Fe-doped system, which produced more grain boundaries in the Fe-doped films than in the undoped system. The increased grain boundary scattering was deemed to be effective for a reduced thermal conductivity. This is advantageous for the preparation of high-performance thermoelectric films.

Source: Journal of the Korean Institute of Electrical and Electronic Material Engineers

DOI: 10.4313/jkem.2021.33.2.12

Authors: Sang Hyun Bae, Soon-mok Choi

Institution: Korea University of Technology and Education

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: diamond

OpenAlex ID: W7168133077