Realization of adjustable electron concentration and its effect on electrical- and Seebeck-property of n-type SnSe crystals
Realization of adjustable electron concentration and its effect on electrical- and Seebeck-property of n-type SnSe crystals
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电子浓度可调的实现及其对n型SnSe晶体电学和塞贝克性能的影响
DOI:
10.1063/5.0078990
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发表时间:
2022-01
影响因子:
4
通讯作者:
Yan-Feng Chen
中科院分区:
文献类型:
--
作者:
Xiao-Li Zhou;Yang-Yang Lv;Hang-Fei Zhang;Yi-Xin Zhang;Jian Zhang;Jian Zhou;Shu-Hua Yao;Y. B. Chen;Yan-Feng Chen
Manipulation of carrier types in SnSe crystals is quite advantageous to fabricate SnSe-based homojunction devices such as thermoelectric modules. However, tuning the n-type charge carrier at an optimal level of SnSe is quite challenging because of its natural p-type without intentional doping. Here, we report the realization of the n-type SnSe through halogens or Ce doping. Importantly, heavily electron doped SnSe single crystals (∼1019 cm−3) can be obtained by Ce-doping through the Bridgeman method. The electrical conductivity of as-grown SnSe crystals evolves from thermally activated behavior to the metallic one when the electron concentrations are increased from 1016 to 1019 cm−3. Remarkably, the power-factor and electronic quality factor of heavily electron Ce-doped SnSe crystals can reach 1.59 and 0.44 μW cm−1 K−2 at 300 K, respectively, which is one of the best thermoelectric n-type SnSe. This work suggests that Ce-doping through the Bridgeman method is an ideal route for further improving the thermoelectric property of n-type SnSe crystals.
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影响因子:
9.4
作者:
Shan Li;Fanghao Zhang;Chen Chen;Xiaofang Li;Feng Cao;Jiehe Sui;Xingjun Liu;Zhifeng Ren;Qian Zhang
通讯作者:
Qian Zhang
DOI:
10.1007/978-3-662-02403-4
发表时间:
1984-09
期刊:
--
影响因子:
--
作者:
B. Shklovskii;A. Efros
通讯作者:
B. Shklovskii;A. Efros
影响因子:
9.5
作者:
Cha, Joonil;Zhou, Chongjian;Chung, In
通讯作者:
Chung, In
影响因子:
6
作者:
Li, J. C.;Li, D.;Zhang, J.
通讯作者:
Zhang, J.
影响因子:
17.6
作者:
Wu Di;Wu Lijun;He Dongsheng;Zhao Li-Dong;Li Wei;Wu Minghui;Jin Min;Xu Jingtao;Jiang Jun;Huang Li;Zhu Yimei;Kanatzidis Mercouri G.;He Jiaqing
通讯作者:
He Jiaqing