Premium
Thermoelectric performance of SnTe with ZnO carrier compensation, energy filtering, and multiscale phonon scattering
Author(s) -
Zhou Zhiwei,
Yang Junyou,
Jiang Qinghui,
Zhang Dan,
Xin Jiwu,
Li Xin,
Ren Yangyang,
He Xu
Publication year - 2017
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.15088
Subject(s) - thermoelectric effect , materials science , phonon scattering , phonon , thermoelectric materials , scattering , seebeck coefficient , thermal conductivity , condensed matter physics , carrier scattering , work (physics) , compensation (psychology) , optoelectronics , composite material , thermodynamics , optics , physics , psychology , psychoanalysis
In this work, the thermoelectric properties of SnTe have been regulated synergistically by introduction of n ‐type ZnO nanoinclusions. On one hand, the excessive holes in SnTe matrix were compensated properly by n ‐type ZnO, and the Seebeck coefficient has been improved greatly due to the carrier energy filtering effect by a large quantity of ZnO‐SnTe hetero‐junction interface barriers; On the other hand, the thermal conductivity gets reduced by the enhanced phonon scattering from multiscale hierarchical architectures. Consequently, a maximum ZT of ~0.9 at 873K has been obtained in the 0.8 wt% sample, which enhances by 112% in comparison with the nanoinclusion‐free sample.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom