文献类型：期刊文献

英文题名：Enhanced thermoelectric properties of Ag doped Cu2S by using hydrothermal method

作者：Yue, Ziwei[1,2];Zhou, Wei[1,2];Ji, Xiaoliang[1,2];Zhang, Fuwen[3];Guo, Fu[1,2,4]

第一作者：Yue, Ziwei

通讯作者：Guo, F[1];Zhang, FW[2]

机构：[1]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China;[2]Beijing Univ Technol, Key Lab Adv Funct Mat, Minist Educ, Beijing 100124, Peoples R China;[3]Natl Engn Res Ctr Nonferrous Met Composites, Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R China;[4]Beijing Union Univ, Coll Robot, Beijing 100101, Peoples R China

第一机构：Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China

通讯机构：[1]corresponding author), Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China;[2]corresponding author), Natl Engn Res Ctr Nonferrous Met Composites, Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R China.

年份：2022

卷号：919

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;EI(收录号：20222512260135);Scopus(收录号：2-s2.0-85132317500);WOS:【SCI-EXPANDED(收录号:WOS:000832978800004)】；

基金：We gratefully acknowledge the financial support from the fol-lowing sources: National Key Research and Development Program of China (2018YFC1902501 and 2018YFC1903605) , National Natural Science Foundation of China (Grant No. 61904008) .

语种：英文

外文关键词：Thermoelectric material; Cu2S; Hydrothermal method; Ag nanoparticles

摘要：Harvesting waste heat into electricity through thermoelectric (TE) material can make a great contribution to reducing energy consumption and environment pollution. Cu2S has proved itself to be a highly promising TE material, whereas the poor electrical property restricts its practical application. Therefore, the way to improve its electrical property by doping elements with high carrier concentration in an environmental-friendly method accelerate its application. Herein, Ag nanoparticles are incorporated into a p-type Cu2S (Ag/Cu2S) by a facile hydrothermal method to improve the thermoelectric properties. The introduction of Ag can effectively tune the carrier concentration, resulting in a high power factor of 1698 mu W m(-1) K-2; meanwhile, Ag doping can also enhance the phonon scattering, further reducing the thermal conductivity. Eventually, a ZT(max) peak value approximate to 1.4 @ 773 K is achieved in the 0.5 wt% Ag-doped Cu2S samples. The design principle for Ag/Cu2S composites opens up a new pathway for the synthesis and application of thermoelectric material. (C) 2022 Elsevier B.V. All rights reserved.