文献类型：期刊文献

英文题名：Enhanced thermoelectric performance of Cu2SnS3 materials via (Cu/Mn/ Sb) triple substitution

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

机构：[1]Zhejiang Normal Univ, Dept Phys, Jinhua, Peoples R China;[2]Shaoxing Univ, Dept Phys, Shaoxing, Peoples R China

年份：2023

卷号：969

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：SCI-EXPANDED(收录号：WOS:001086796400001)、、WOS

基金：Acknowledgments This work was sponsored by the Zhejiang Provincial Natural Science Foundation of China (Grant No. LY19E020009) .

语种：英文

外文关键词：Thermoelectric properties; Cu2SnS3; Cu/Mn/Sb triply substituting

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 substituting 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 substituting CTS. Cu2.1Sb0.12Sn0.78S3 sample achieves a significant power factor value of 12.3 mu W cm-1 K-2. Additionally, the thermal conductivity is successfully suppressed by the Cu/Mn substituting to a low value of 0.32 W m-1 K-1 at 708 K. Therefore, the Cu2.1Mn0.04Sb0.08Sn0.78S3 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.