Work

Influence of nanoscale Ag2Te precipitates on the thermoelectric properties of the Sn doped P-type AgSbTe2 compound

Year: 2014

Type: article

Abstract: We report a maximal figure of merit (ZT) value of 1.1 at 600 K was obtained for the sample of which x = 0.03, representing an enhancement greater than 20% compared with a pristine AgSbTe2 sample. This favorable thermoelectric performance originated from the optimal Sn2+ substitution for Sb3+ in AgSbTe2, which not only increased electrical conductivity but also led to a substantial reduction in thermal conductivity that was likely caused by an enhanced phonon-scattering mechanism through the combined effects of lattice defects and the presence of Ag2Te nanoprecipitates dispersed in the matrix.

Source: APL Materials

DOI: 10.1063/1.4896435

Authors: Rajeshkumar Mohanraman, Raman Sankar, Fang-Cheng Chou, Chih-Hao Lee, Yoshiyuki Iizuka, I. Panneer Muthuselvam, Yang-Yuan Chen

Institutions: National Tsing Hua University, Institute of Physics, Academia Sinica, Academia Sinica, National Taiwan University, Institute of Earth Sciences, Academia Sinica

Language: English

Topic: Advanced Thermoelectric Materials and Devices

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,200

OpenAlex ID: W2006584902

FWCI: 0.808

Cites: 27

Cited by: 25

Related to: 10