中文版 | English
Title

High thermoelectric performance in low-cost SnS0.91Se0.09 crystals

Author
Publication Years
2019-09-27
DOI
Source Title
ISSN
0036-8075
EISSN
1095-9203
Volume365Issue:6460Pages:1418-1424
Abstract

Thermoelectric technology allows conversion between heat and electricity. Many good thermoelectric materials contain rare or toxic elements, so developing low-cost and high-performance thermoelectric materials is warranted. Here, we report the temperature-dependent interplay of three separate electronic bands in hole-doped tin sulfide (SnS) crystals. This behavior leads to synergistic optimization between effective mass (m*) and carrier mobility (m) and can be boosted through introducing selenium (Se). This enhanced the power factor from ~30 to ~53 microwatts per centimeter per square kelvin (mW cm K at 300 K), while lowering the thermal conductivity after Se alloying. As a result, we obtained a maximum figure of merit ZT (ZT) of ~1.6 at 873 K and an average ZT (ZT) of ~1.25 at 300 to 873 K in SnSSe crystals. Our strategy for band manipulation offers a different route for optimizing thermoelectric performance. The high-performance SnS crystals represent an important step toward low-cost, Earth-abundant, and environmentally friendly thermoelectrics.

URL[Source Record]
Indexed By
SCI ; SCI
Language
English
Funding Project
Shenzhen Key Laboratory[ZDSYS20170303165926217]
WOS Research Area
Science & Technology - Other Topics
WOS Subject
Multidisciplinary Sciences
WOS Accession No
WOS:000488838600041 ; WOS:000488838600041
Publisher
Important Publications
NI Journal Papers
SUSTech Authorship
Others
ESI Research Field
MULTIDISCIPLINARY
Scopus EID
2-s2.0-85072698087
Data Source
Scopus
Citation statistics
Cited Times [WOS]:73
Document TypeJournal Article
Identifierhttps://kc.sustech.edu.cn/handle/2SGJ60CL/43867
DepartmentDepartment of Physics
公共分析测试中心
Affiliation
1.School of Materials Science and EngineeringBeihang University,Beijing,100191,China
2.Department of Materials Science and EngineeringNational University of Singapore,Singapore,117575,Singapore
3.Department of PhysicsSouthern University of Science and Technology,Shenzhen,518055,China
4.Key Laboratory of New Ceramics and Fine ProcessingSchool of Materials Scienc and EngineeringTsinghua University,Beijing,100084,China
5.Research Institute for Energy ConservationNational Institute of Advanced Industrial Science and Technology (AIST),Tsukuba,305-8568,Japan
6.Department of Nuclear PhysicsNeutron Scattering LaboratoryChina Institute of Atomic Energy,Beijing,102413,China
7.Key Laboratory of Neutron PhysicsInstitute of Nuclear Physics and ChemistryChina Academy of Engineering Physics,Mianyang,621900,China
8.Beijing Synchrotron Radiation FacilityInstitute of High Energy PhysicsChinese Academy of Sciences,Beijing,100049,China
9.Department of IsotopeChina Institute of Atomic Energy,Beijing,102413,China
10.College of Physics and Materials ScienceHenan Normal University,Xinxiang,453007,China
11.Shenzhen Key Laboratory of Quantum Science and EngineeringShenzhen Institute for Quantum Science and Engineering,Shenzhen,518055,China
Recommended Citation
GB/T 7714
He,Wenke,Wang,Dongyang,Wu,Haijun,et al. High thermoelectric performance in low-cost SnS0.91Se0.09 crystals[J]. SCIENCE,2019,365(6460):1418-1424.
APA
He,Wenke.,Wang,Dongyang.,Wu,Haijun.,Xiao,Yu.,Zhang,Yang.,...&Zhao,Li Dong.(2019).High thermoelectric performance in low-cost SnS0.91Se0.09 crystals.SCIENCE,365(6460),1418-1424.
MLA
He,Wenke,et al."High thermoelectric performance in low-cost SnS0.91Se0.09 crystals".SCIENCE 365.6460(2019):1418-1424.
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