The Thermoelectric Properties of SnSe Continue to Surprise: Extraordinary Electron and Phonon Transport

Chang, Cheng1; Tan, Gangjian2; He, Jiaqing3; Kanatzidis, Mercouri G.4; Zhao, Li-Dong1

2018-11-13

10.1021/acs.chemmater.8b03732

CHEMISTRY OF MATERIALS   影响因子和分区

0897-4756

1520-5002

Thermoelectric technology enables the harvest of waste heat and its direct conversion into electricity. Most well-developed strategies aimed at enhancing thermoelectric performance are based on isotropic bulk materials. The strong coupling relationships in thermoelectric parameters make it difficult to optimize electron or phonon transport solely to realize high thermoelectric performance. Recently, many emerging materials with 2D structures elucidate superior thermoelectric properties originating from their anisotropic structures and transport features. However, the strategies to enhance thermoelectric performance for these materials with 2D structures are still ambiguous. In this Perspective, SnSe was selected as an example with 2D structures; the remarkable electron and phonon transport of SnSe are summarized for several aspects, including crystal structure, anharmonicity, multiple valence band structure, continuous phase transition, and 3D charge and 2D phonon transport. These illuminating discoveries in SnSe could provide routes to seek promising thermoelectric materials with 2D structures and enhance the thermoelectric performance.

SCI ; EI

英语

其他

National Basic Research Program of China (973 Program)[2018YFB0703600] ; Beijing Municipal Science and Technology Commission[B17002] ; U.S. Department of Energy[] ; Northwestern University[] ; National Natural Science Foundation of China[51772012] ; Basic Energy Sciences[DE-SC0014520] ; National Natural Science Foundation of China[11804261] ; American Chemical Society[] ; American Physical Society[]

Chemistry ; Materials Science

Chemistry, Physical ; Materials Science, Multidisciplinary

WOS:000450696100003

AMER CHEMICAL SOC

20184406009172

Crystal structure ; Layered semiconductors ; Phonons ; Selenium compounds ; Thermoelectric equipment ; Thermoelectricity ; Waste heat

Energy Losses (industrial and residential):525.4 ; Thermoelectric Energy:615.4 ; Electricity: Basic Concepts and Phenomena:701.1 ; Crystal Lattice:933.1.1

MATERIALS SCIENCE

Web of Science

1.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China
2.Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China
3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
4.Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA

Chang, Cheng,Tan, Gangjian,He, Jiaqing,et al. The Thermoelectric Properties of SnSe Continue to Surprise: Extraordinary Electron and Phonon Transport[J]. CHEMISTRY OF MATERIALS,2018,30(21):7355-7367.

Chang, Cheng,Tan, Gangjian,He, Jiaqing,Kanatzidis, Mercouri G.,&Zhao, Li-Dong.(2018).The Thermoelectric Properties of SnSe Continue to Surprise: Extraordinary Electron and Phonon Transport.CHEMISTRY OF MATERIALS,30(21),7355-7367.

Chang, Cheng,et al."The Thermoelectric Properties of SnSe Continue to Surprise: Extraordinary Electron and Phonon Transport".CHEMISTRY OF MATERIALS 30.21(2018):7355-7367.