NIMTE OpenIR  > 2017专题
Optimizing the thermoelectric performance of In-Cd codoped SnTe by introducing Sn vacancies
Tan, Xiaofang; Tan, Xiaojian; Liu, Guoqiang; Xu, Jingtao; Shao, Hezhu; Hu, Haoyang; Jin, Min; Jiang, Haochuan; Jiang, Jun
2017
Source PublicationJOURNAL OF MATERIALS CHEMISTRY C
ISSN2050-7526
Volume5Issue:30Pages:7504-7509
AbstractSnTe has been known as a unique thermoelectric material to achieve the synergy of a resonant level and band convergence, originating from its characteristic band structure. In this work, we report an optimization of the two kinds of band engineering in In-Cd codoped SnTe. Owing to the complementary and competitive effects of the resonant level and band convergence, the location of the Fermi level is critical to the optimization. We show that the highest power factor and thermoelectric figure of merit ZT are reached by introducing Sn vacancies, rather than reducing Sn vacancies as normally done in SnTe. The peak ZT similar to 1.1 appears at 850 K, while an overall enhanced ZT(ave) of 0.54 between 300 and 850 K and an estimated conversion efficiency of 9% are obtained. This study discloses the non-trivial interplay between the resonant level and band convergence.
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/13685
Collection2017专题
Recommended Citation
GB/T 7714
Tan, Xiaofang,Tan, Xiaojian,Liu, Guoqiang,et al. Optimizing the thermoelectric performance of In-Cd codoped SnTe by introducing Sn vacancies[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017,5(30):7504-7509.
APA Tan, Xiaofang.,Tan, Xiaojian.,Liu, Guoqiang.,Xu, Jingtao.,Shao, Hezhu.,...&Jiang, Jun.(2017).Optimizing the thermoelectric performance of In-Cd codoped SnTe by introducing Sn vacancies.JOURNAL OF MATERIALS CHEMISTRY C,5(30),7504-7509.
MLA Tan, Xiaofang,et al."Optimizing the thermoelectric performance of In-Cd codoped SnTe by introducing Sn vacancies".JOURNAL OF MATERIALS CHEMISTRY C 5.30(2017):7504-7509.
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