Ultrahigh Thermoelectric Performance in Mosaic Crystals

被引：221

作者：

He, Ying ^{[1
,2
,3
]}

Lu, Ping ^{[1
,3
]}

Shi, Xun ^{[1
,2
]}

Xu, Fangfang ^{[1
]}

Zhang, Tiansong ^{[2
]}

Snyder, Gerald Jeffrey ^{[4
]}

Uher, Ctirad ^{[5
]}

Chen, Lidong ^{[1
,2
,6
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[5] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[6] Shanghai Inst Mat Genome, Shanghai 200444, Peoples R China

来源：

ADVANCED MATERIALS | 2015年 / 27卷 / 24期

基金：

中国国家自然科学基金;

关键词：

FIGURE; SCATTERING; HEAT;

D O I：

10.1002/adma.201501030

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Successful research strategies to enhance the dimensionless figure of merit zT above 2 rely on either bulk nanomaterials or on single crystals. A new physical mechanism of nanoscale mosaicity is shown that goes beyond the approaches in single crystals or conventional nanomaterials. A zT value of 2.1 at 1000 K in bulk nanomaterials is achieved.

引用

页码：3639 / 3644

页数：6

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