摘要: SnCdxTe materials were synthesized by the zone-melting method for this thermoelectric performance study. The X-ray diffraction results show that the lattice parameter decreases with increasing x, following Vegard's law of rock-salt structure SnTe and CdTe. Besides, the room temperature Seebeck coefficients of the SnCdxTe system are enhanced to >60 mV K 1, larger than those of Cd-doped SnTe synthesized by spark plasma sintering. A large power factor of $25 mW cm 1 K 1 is achieved in SnCd0.12Te at 820 K, which rivals those of high performance PbTe-based materials. As a result, the highest ZT of $1.03 at 820 K was achieved for SnCd0.12Te.
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期刊：
RSC ADVANCES
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分类：
物理学
>>
普通物理:统计和量子力学,量子信息等
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引用：
ChinaXiv:201705.00594
(或此版本
ChinaXiv:201705.00594V1)
DOI:10.12074/201705.00594V1
CSTR:32003.36.ChinaXiv.201705.00594.V1
- 推荐引用方式：
He, J [He, Jun][ 1,2 ],Xu, JT [Xu, Jingtao][ 2 ],Liu, GQ [Liu, Guo-Qiang][ 2 ],Shao, HZ [Shao, Hezhu][ 2 ],Tan, XJ [Tan, Xiaojian][ 2 ],Liu, Z [Liu, Zhu][ 2 ],Xu, JQ [Xu, Jiaqiang][ 1 ],Jiang, HC [Jiang, Haochuan][ 2 ],Jiang, J [Jiang, Jun][ 2 ].(2017).Enhanced thermopower in rock-salt SnTe-CdTe from band convergence.中国科学院科技论文预发布平台.[ChinaXiv:201705.00594]
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