文献类型：期刊文献

英文题名：Enhanced Thermoelectric Performance of Cu2sns3 Materials Via (Cu/Mn/Sb) Triple Doping

作者：Zheng, Pingping[1]; Shao, Yaoming[1]; Dong, Tianhao[1]; Lianghuan, Wei[1]; Qin, Yanjun[1]; Wu, Haifei[2]; Si, Jianxiao[1]

机构：[1] Department of Physics, Zhejiang Normal University, Jinhua, China; [2] Department of Physics, Shaoxing University, Shaoxing, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230241947)

语种：英文

外文关键词：Antimony - Antimony compounds - Cost effectiveness - Electric power factor - Manganese - Manganese compounds - Thermoelectric equipment - Thermoelectricity - Tin compounds

外文摘要：Ternary Cu2SnS3 (CTS) has lately received a lot of attention as a very promising thermoelectric material contender due to its cost-effectiveness and eco-friendliness. However, its inadequate electrical power factor restricts its widespread application in thermoelectric devices. In the present work, a strategy to maximize power factor by triply doping Cu, Mn, and Sb at the Sn site was examined. A phase change from cubic to tetragonal structure and a rise in effective masses that boost the power factor are brought about by the insertion of Sb doping in the triply doped CTS. Cu2.1Sb0.12Sn0.88S3 sample achieves a significant power factor value of 12.3 μW cm-1 K-2. Additionally, the thermal conductivity is successfully suppressed by the Cu/Mn co-doping to a low value of 0.32 W m-1 K-1 at 708 K. Therefore, the Cu2.1Mn0.04Sb0.08Sn0.88S3 sample achieves a maximum ZT of 0.61 at 743 K. This research offers an effective strategy for enhancing thermoelectric performance in CTS-based materials through synergistic doping. ? 2023, The Authors. All rights reserved.