123rd General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Exhibition Hall 2
Time 4월 19일 (금요일) 11:00~12:30
Code MAT.P-462
Subject Synthesis and Thermoelectric Properties of Cu2SnS3
Authors Sujin Kim, Mi-Kyung Han1, Sung-Jin Kim2,*
Chemistry and Nano Science , Ewha Womans University, Korea
1Division of Chemistry and Nano Science, Ewha Womans University, Korea
2Department of Chemistry, Ewha Womans University, Korea
Abstract The thermoelectric (TE) materials have attracted much attention due to needs for potential renewable energy source. The efficient of thermoelectric devices can be evaluated by the figure of merit , ZT = S2σT/κ , where S is the Seebeck coefficient, σ is the electrical conductivity, T is the absolute temperature and κ is the thermal conductivity. Among the various kinds of thermoelectric materials, sulfide materials regarded as a promising eco-friendly TE material due to their earth abundant, low-cost and non-toxic elelments. Ternary sulfide Cu2SnS3 has recently attracted attention as an outstanding p-type thermoelectric materials with band gap 0.7-0.9 eV. In this study, we synthesize metal-doped Cu2SnS3 through solid state reaction. We consolidated metal-doped Cu2SnS3 to pellets with hot press. The crystal structure was investigated with X-ray diffraction and thermoelectric properties by ZEM-3 equipment (Ulvac-Riko) and NETZSCH LFA 457 MicroFlash™.
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