@article{SHI2020, 
author = {Xiaolei SHI and Xin AI and Qihao ZHANG and Xiaofang LU and Shijia GU and Li SU and Lianjun WANG and Wan JIANG},
title = {Enhanced thermoelectric properties of hydrothermally synthesized n-type Se&Lu-codoped Bi2Te3},
year = {2020},
journal = {Journal of Advanced Ceramics},
volume = {9},
number = {4},
pages = {424-431},
keywords = {thermoelectric material, n-type, bismuth telluride, hydrothermal synthesis, co-doping},
url = {https://www.sciopen.com/article/10.1007/s40145-020-0382-9},
doi = {10.1007/s40145-020-0382-9},
abstract = {N-type Se&Lu-codoped Bi2Te3 nanopowders were prepared by hydrothermal method and sintered by spark plasma sintering technology to form dense samples. By further doping Se element into Lu-doped Bi2Te3 samples, the thickness of the nanosheets has the tendency to become thinner. The electrical conductivity of Lu0.1Bi1.9Te3-xSex material is reduced with the increasing Se content due to the reduced carrier concentration, while the Seeback coefficient values are enhanced. The lattice thermal conductivity of the Lu0.1Bi1.9Te3-xSex is greatly reduced due to the introduced point defects and atomic mass fluctuation. Finally, the Lu0.1Bi1.9Te2.7Se0.3 sample obtained a maximum ZT value of 0.85 at 420 K. This study provides a low-cost and simple low-temperature method to mass production of Se&Lu-codoped Bi2Te3 with high thermoelectric performance for practical applications.}
}