NIMTE OpenIR  > 2018专题
Nontrivial thermoelectric behavior in cubic SnSe driven by spin-orbit coupling
Wang, Hong-Xiang; Mao, Li-Sha; Tan, Xiaojian; Liu, Guo-Qiang; Xu, Jingtao; Shao, Hezhu; Hu, Haoyang; Jiang, Jun
2018
发表期刊NANO ENERGY
卷号51页码:649-655
摘要Recently, tin selenide SnSe has attracted extensive attention for the reported excellent thermoelectric performance. By alloying with AgSbSe2, we observed that SnSe undergoes a phase transition from the orthorhombic structure to a cubic phase. The cubic SnSe exhibits some anomalous thermoelectric properties compared with common IV-VI cubic semiconductors, such as PbTe and SnTe. It is proven that cubic SnSe is not a trivial band semiconductor, whereas its band gap originates in the spin-orbit coupling effects. In this nontrivial semiconductor, the competing factors, Seebeck coefficient and electrical conductivity, can be simultaneously optimized. The peak ZT reaches 0.82 at 842 K in Sn-0.4(AgSb)(0.3)Se. This study reveals that such spin-orbit semiconductors are a new class of promising thermoelectric materials, in which the thermoelectric performance strongly depends on the local spin-orbit coupling, besides the overall chemical bonding.
关键词Augmented-wave Method Polycrystalline Snse Thermal-conductivity Transport-properties Performance Snte Pbse Pressure Crystals Phase
学科领域Chemistry ; Science & Technology - Other Topics ; Engineering
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17234
专题2018专题
推荐引用方式
GB/T 7714
Wang, Hong-Xiang,Mao, Li-Sha,Tan, Xiaojian,et al. Nontrivial thermoelectric behavior in cubic SnSe driven by spin-orbit coupling[J]. NANO ENERGY,2018,51:649-655.
APA Wang, Hong-Xiang.,Mao, Li-Sha.,Tan, Xiaojian.,Liu, Guo-Qiang.,Xu, Jingtao.,...&Jiang, Jun.(2018).Nontrivial thermoelectric behavior in cubic SnSe driven by spin-orbit coupling.NANO ENERGY,51,649-655.
MLA Wang, Hong-Xiang,et al."Nontrivial thermoelectric behavior in cubic SnSe driven by spin-orbit coupling".NANO ENERGY 51(2018):649-655.
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