Point defect approach to enhance the thermoelectric performance of Zintl-phase BaAgSb

被引：22

作者：

Huang, Yifang ^{[1
,2
]}

Chen, Chen ^{[1
,2
,3
]}

Zhang, Weiming ^{[1
,2
]}

Li, Xiaofang ^{[1
,2
]}

Xue, Wenhua ^{[1
,2
,4
]}

Wang, Xinyu ^{[1
,2
]}

Liu, Yijie ^{[5
]}

Yao, Honghao ^{[1
,2
]}

Zhang, Zongwei ^{[1
,2
]}

Chen, Yue ^{[3
]}

Cao, Feng ^{[5
]}

Liu, Xingjun ^{[1
,2
,6
]}

Wang, Yumei ^{[4
]}

Zhang, Qian ^{[1
,2
,6
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Shenzhen 518055, Peoples R China

[2] Harbin Inst Technol, Inst Mat Genome & Big Data, Shenzhen 518055, Peoples R China

[3] Univ Hong Kong, Dept Mech Engn, Pokfulam Rd, Hong Kong, Peoples R China

[4] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[5] Harbin Inst Technol, Sch Sci, Shenzhen 518055, Peoples R China

[6] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

来源：

SCIENCE CHINA-MATERIALS | 2021年 / 64卷 / 10期

基金：

中国国家自然科学基金;

关键词：

thermoelectric; Zintl phase; point defect; isoelectronic alloying; ZT;

D O I：

10.1007/s40843-020-1640-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Zintl-phase compounds have great potential in thermoelectric applications owing to their "phonon glass-electron crystal" (PGEC) structures. In this paper, a new Zintl-phase thermoelectric material BaAgSb is reported. Ba deficiency increased the carrier concentration, and then suppressed the intrinsic excitation. The peak ZT value of Ba0.98AgSb reached similar to 0.56 at 773 K. Moreover, Eu alloying at Ba site not only lowered the lattice thermal conductivity by inducing point-defect scattering, but also improved the electrical properties by increasing the carrier mobility. Finally, a peak ZT of similar to 0.73 was achieved in Ba0.78Eu0.2AgSb.

引用

收藏

页码：2541 / 2550

页数：10

相关论文

共 44 条

[1] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

[2] Promising materials for thermoelectric applications [J].

Cai, Bowen ;

Hu, Haihua ;

Zhuang, Hua-Lu ;

Li, Jing-Feng .

JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 806 :471-486

[3] Exceptionally high electronic mobility in defect-rich Eu2ZnSb2-xBix alloys [J].

Chanakian, Sevan ;

Uhl, David ;

Neff, David ;

Drymiotis, Fivos ;

Park, Junsoo ;

Petkov, Valeri ;

Zevalkink, Alexandra ;

Bux, Sabah .

JOURNAL OF MATERIALS CHEMISTRY A, 2020, 8 (12) :6004-6012

[4] Manipulating the intrinsic vacancies for enhanced thermoelectric performance in Eu2ZnSb2 Zintl phase [J].

Chen, Chen ;

Li, Xiaofang ;

Xue, Wenhua ;

Bai, Fengxian ;

Huang, Yifang ;

Yao, Honghao ;

Li, Shan ;

Zhang, Zongwei ;

Wang, Xinyu ;

Sui, Jiehe ;

Liu, Xingjun ;

Cao, Feng ;

Wang, Yumei ;

Zhang, Qian .

NANO ENERGY, 2020, 73

[5] Enhanced Thermoelectric Performance of Zintl Phase Ca9Zn4+xSb9 by Beneficial Disorder on the Selective Cationic Site [J].

Chen, Chen ;

Xue, Wenhua ;

Li, Xiaofang ;

Lan, Yucheng ;

Zhang, Zongwei ;

Wang, Xinyu ;

Zhang, Fan ;

Yao, Honghao ;

Li, Shan ;

Sui, Jiehe ;

Han, Peide ;

Liu, Xingjun ;

Cao, Feng ;

Wang, Yumei ;

Zhang, Qian .

ACS APPLIED MATERIALS & INTERFACES, 2019, 11 (41) :37741-37747

[6] Zintl-phase Eu2ZnSb2: A promising thermoelectric material with ultralow thermal conductivity [J].

Chen, Chen ;

Xue, Wenhua ;

Li, Shan ;

Zhang, Zongwei ;

Li, Xiaofang ;

Wang, Xinyu ;

Liu, Yijie ;

Sui, Jiehe ;

Liu, Xingjun ;

Cao, Feng ;

Ren, Zhifeng ;

Chu, Ching-Wu ;

Wang, Yumei ;

Zhang, Qian .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2019, 116 (08) :2831-2836

[7] Lattice Dislocations Enhancing Thermoelectric PbTe in Addition to Band Convergence [J].

Chen, Zhiwei ;

Jian, Zhengzhong ;

Li, Wen ;

Chang, Yunjie ;

Ge, Binghui ;

Hanus, Riley ;

Yang, Jiong ;

Chen, Yue ;

Huang, Mingxin ;

Snyder, Gerald Jeffrey ;

Pei, Yanzhong .

ADVANCED MATERIALS, 2017, 29 (23)

[8] Entropy Engineering of SnTe: Multi-Principal-Element Alloying Leading to Ultralow Lattice Thermal Conductivity and State-of-the-Art Thermoelectric Performance [J].

Hu, Lipeng ;

Zhang, Yang ;

Wu, Haijun ;

Li, Junqin ;

Li, Yu ;

Mckenna, Myles ;

He, Jian ;

Liu, Fusheng ;

Pennycook, Stephen John ;

Zeng, Xierong .

ADVANCED ENERGY MATERIALS, 2018, 8 (29)

[9] Point Defect Engineering of High-Performance Bismuth-Telluride-Based Thermoelectric Materials [J].

Hu, Lipeng ;

Zhu, Tiejun ;

Liu, Xiaohua ;

Zhao, Xinbing .

ADVANCED FUNCTIONAL MATERIALS, 2014, 24 (33) :5211-5218

[10] Zintl phases for thermoelectric devices [J].

Kauzlarich, Susan M. ;

Brown, Shawna R. ;

Snyder, G. Jeffrey .

DALTON TRANSACTIONS, 2007, (21) :2099-2107

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