Synthesis and thermoelectric properties of type-I clathrate Ge30P16Te8

被引：24

作者：

Kishimoto, Kengo ^{[1
]}

Akai, Koji

Muraoka, Noriaki

Koyanagi, Tsuyoshi

Matsuura, Mitsuru

机构：

[1] Yamaguchi Univ, Grad Sch Sci & Engn, Ube, Yamaguchi 7558611, Japan

[2] Yamaguchi Univ, Media & Informat Technol Ctr, Ube, Yamaguchi 7558611, Japan

[3] Univ Air, Yamaguchi Learning Ctr, Sanyo Onado 7560884, Japan

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 17期

关键词：

D O I：

10.1063/1.2364473

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The tellurium-containing cationic type-I clathrate Ge30P16Te8 was synthesized and its thermoelectric properties were investigated. This clathrate showed a p-type conductivity, while most of the clathrates are n type. The Ge30P16Te8 clathrate had a band gap energy of 0.62 eV and a room temperature thermal conductivity of 9 mW cm(-1) K-1, which is as low as those of germanium clathrates such as anionic Sr8Ga16Ge30 and cationic Ge38Sb8I8. The electronic structure of the Ge30P16Te8 clathrate was also calculated using an ab initio method. (c) 2006 American Institute of Physics.

引用

页数：3

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