Isotropic Conduction Network and Defect Chemistry in Mg3+δSb2-Based Layered Zintl Compounds with High Thermoelectric Performance

被引：486

作者：

Tamaki, Hiromasa ^{[1
]}

Sato, Hiroki K. ^{[1
]}

Kanno, Tsutomu ^{[1
]}

机构：

[1] Panasonic Corp, Adv Res Div, 3-4 Hikaridai, Seika, Kyoto 6190237, Japan

来源：

ADVANCED MATERIALS | 2016年 / 28卷 / 46期

关键词：

FIGURE; MG3SB2; POWER;

D O I：

10.1002/adma.201603955

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Thermoelectric performance in the layered Zintl phase n-type Mg3+delta(Sb,Bi)(2) is reported. Insertion of the excess Mg into the compounds is crucial for realizing n-type carrier transport with multivalley and isotropic character. An excellent ZT of 1.51 +/- 0.06 at 716 K is achieved in the sintered polycrystals at the composition of Mg3.2Sb1.5Bi0.49Te0.01.

引用

页码：10182 / 10187

页数：6

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