Entropy Engineered Cubic n-Type AgBiSe2 Alloy with High Thermoelectric Performance in Fully Extended Operating Temperature Range

doi:10.1002/aenm.202003304

	Entropy Engineered Cubic n-Type AgBiSe2 Alloy with High Thermoelectric Performance in Fully Extended Operating Temperature Range
	Zhu, Huaxing 1; Zhao, Ting 1; Zhang, Bin 2; An, Zibing 3; Mao, Shengcheng 3; Wang, Guoyu 4; Han, Xiaodong 3; Lu, Xu 1; Zhang, Jiangwei 5,6; Zhou, Xiaoyuan 1,2
刊名	ADVANCED ENERGY MATERIALS
	2020-12-21
页码	9
关键词	cubic AgBiSe (2) entropy engineering local structure distortion phase transitions thermoelectric performance
ISSN号	1614-6832
DOI	10.1002/aenm.202003304
通讯作者	Lu, Xu(luxu@cqu.edu.cn) ; Zhang, Jiangwei(jwzhang@dicp.ac.cn) ; Zhou, Xiaoyuan(xiaoyuan2013@cqu.edu.cn)
英文摘要	Developing high performance n-type thermoelectric (TE) materials is fundamentally important for developing high efficiency TE devices. AgBiSe2, which reveals superior n-type TE performance in a cubic phase, crystallizes in a hexagonal phase at room temperature, and typically, undergoes phase transitions to a cubic phase at a temperature above 580 K. Here, for the first time, through entropy optimization with lead-selenides (>= 9.9 mol%), the high-temperature cubic phase of AgBiSe2 is stabilized from 300 to 800 K. Furthermore, the AgBiSe2-PbSe pseudo-binary diagram is established. The resultant alloys with optimized entropy possess unique local distorted cubic lattices, which contribute low lattice thermal conductivity approaching 0.3 W m(-1) K-1 in extended operating temperature range. Consequently, a peak figure of merit zT value of approximate to 0.8 at 800 K and a record-high average zT value of 0.42 for n-type I-V-VI2 compounds are attained in pure phase cubic n-type (AgBiSe2)(1-)(x)(PbSe)(x) solid solutions. These results pave the way for developing new TE materials via entropy engineering.
资助项目	National Natural Science Foundation of China[51772035] ; National Natural Science Foundation of China[11674040] ; National Natural Science Foundation of China[11874356] ; National Natural Science Foundation of China[21701168] ; National Natural Science Foundation of China[51672270] ; National Key Basic Research Program of China[2020YFA0406101] ; Fundamental Research Funds for the Central Universities[2019CDXYFXCS0006] ; Liaoning Natural Science Foundation[20180510050] ; Chongqing Entrepreneurship and Innovation Program for the Returned Overseas Chinese Scholars[cx2019002]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science ; Physics
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000600498000001
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/12640]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Lu, Xu; Zhang, Jiangwei; Zhou, Xiaoyuan
作者单位	1.Chongqing Univ, Chongqing Key Lab Soft Condensed Matter Phys & Sm, Chongqing 401331, Peoples R China 2.Chongqing Univ, Analyt & Testing Ctr, Chongqing 401331, Peoples R China 3.Beijing Univ Technol, Beijing Key Lab Microstruct & Property Adv Mat, Beijing 100124, Peoples R China 4.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 5.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 6.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Huaxing,Zhao, Ting,Zhang, Bin,et al. Entropy Engineered Cubic n-Type AgBiSe2 Alloy with High Thermoelectric Performance in Fully Extended Operating Temperature Range[J]. ADVANCED ENERGY MATERIALS,2020:9.
APA	Zhu, Huaxing.,Zhao, Ting.,Zhang, Bin.,An, Zibing.,Mao, Shengcheng.,...&Zhou, Xiaoyuan.(2020).Entropy Engineered Cubic n-Type AgBiSe2 Alloy with High Thermoelectric Performance in Fully Extended Operating Temperature Range.ADVANCED ENERGY MATERIALS,9.
MLA	Zhu, Huaxing,et al."Entropy Engineered Cubic n-Type AgBiSe2 Alloy with High Thermoelectric Performance in Fully Extended Operating Temperature Range".ADVANCED ENERGY MATERIALS (2020):9.