Enhanced thermoelectric performance in polycrystalline N-type Pr-doped SnSe by hot forging
Enhanced thermoelectric performance in polycrystalline N-type Pr-doped SnSe by hot forging
复制标题
通过热锻增强多晶 N 型 Pr 掺杂 SnSe 的热电性能
DOI:
10.1016/j.actamat.2020.03.009
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发表时间:
2020-05
期刊:
影响因子:
9.4
通讯作者:
Qian Zhang
中科院分区:
文献类型:
--
作者:
Shan Li;Fanghao Zhang;Chen Chen;Xiaofang Li;Feng Cao;Jiehe Sui;Xingjun Liu;Zhifeng Ren;Qian Zhang
SnSe has attracted significant attention for use in thermoelectric devices due to its reported ultrahigh figure-of-meritZTin both p- and n-type single crystals, which inspired us to explore the thermoelectric properties of SnSe polycrystals for potential large-scale applications. Here, n-type Sn1-xPrxSe polycrystals are prepared by ball milling and hot pressing. A maximumZTvalue of ~0.7 at 773 K is achieved in Sn0.97Pr0.03Se due to the enhanced electron concentration and electrical conductivity resulting from Pr doping at the Sn site. Through hot forging for a higher degree of orientation, a lowered thermal conductivity is obtained along the hot-pressing direction, contributing to an enhancedZTvalue of ~0.9 at 773 K in this direction. This study paves a new way for optimization of n-type SnSe by cation-site lanthanide doping.
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影响因子:
3.5
作者:
Zhao, L. D.;Zhang, B. -P.;Liu, W. S.
通讯作者:
Liu, W. S.
影响因子:
16.6
作者:
Hangtian Zhu;Jun Mao;Yuwei Li;Jifeng Sun;Yumei Wang;Qing Zhu;Guannan Li;Qichen Song;Jiawei Zhou;Yuhao Fu;Ran He;Tian Tong;Zihang Liu;Wuyang Ren;Li You;Zhiming Wang;Jun Luo;Andrei Sotnikov;Jiming Bao;Kornelius Nielsch;Gang Chen;David J. Singh;Zhifeng Ren
通讯作者:
Zhifeng Ren
影响因子:
4
作者:
STARY, Z;HORAK, J;STOLZER, M
通讯作者:
STOLZER, M
影响因子:
9.5
作者:
Cha, Joonil;Zhou, Chongjian;Chung, In
通讯作者:
Chung, In
影响因子:
64.8
作者:
Biswas, Kanishka;He, Jiaqing;Kanatzidis, Mercouri G.
通讯作者:
Kanatzidis, Mercouri G.