期刊
AIP ADVANCES
卷 5, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4936636
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资金
- Energy Efficiency & Resource program of Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korean Ministry of Knowledge Economy [20132020000110]
- Priority Research Centers Program through NRF - Ministry of Education [2009-0093818]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20132020000110] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [21A20131100002] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Strain effect on thermoelectricity of orthorhombic SnSe is studied using density function theory. The Seebeck coefficients are obtained by solving Boltzmann Transport equation (BTE) with interpolated band energies. As expected from the crystal structure, calculated Seebeck coefficients are highly anisotropic, and agree well with experiment. Changes in the Seebeck coefficients are presented, when strain is applied along b and c direction with strength from -3% to +3%, where influence by band gaps and band dispersions are significant. Moreover, for compressive strains, the sign change of Seebeck coefficients at particular direction suggests that the bipolar transport is possible for SnSe. (C) 2015 Author(s).
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