Co-precipitation synthesis of nanostructured Cu3SbSe4 and its Sn-doped sample with high thermoelectric performance

被引：53

作者：

Li, Di ^{[1
]}

Li, Rui ^{[1
]}

Qin, Xiao-Ying ^{[1
]}

Song, Chun-Jun ^{[1
]}

Xin, Hong-Xing ^{[1
]}

Wang, Ling ^{[1
]}

Zhang, Jian ^{[1
]}

Guo, Guang-lei ^{[1
]}

Zou, Tian-Hua ^{[1
]}

Liu, Yong-Fei ^{[1
]}

Zhu, Xiao-Guang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China

来源：

DALTON TRANSACTIONS | 2014年 / 43卷 / 04期

关键词：

FIGURE; NANOCRYSTALS; THERMOPOWER; NANOWIRES;

D O I：

10.1039/c3dt52447g

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Large-scale fabrication of nanostructured Cu3SbSe4 and its Sn-doped sample Cu3Sb0.98Sn0.02Se4 through a low-temperature co-precipitation route is reported. The effects of hot-pressing temperatures, time and Sn doping on the thermoelectric properties of Cu3SbSe4 are explored. The maximum figure of merit ZT(max) obtained here reaches 0.62 for the un-doped Cu3SbSe4, which is three times as large as that of Cu3SbSe4 synthesized by the fusion method. Due to the ameliorated power factor by optimized carrier concentration and the reduced lattice thermal conductivity by enhanced phonon scattering at grain interfaces, Sn doping leads to an improvement of thermoelectric performance as compared to Cu3SbSe4. The maximum ZT for Cu3Sb0.98Sn0.02Se4 is 1.05 in this work, which is 50% larger than the largest value reported.

引用

页码：1888 / 1896

页数：9