| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7992826 | Journal of Alloys and Compounds | 2018 | 20 Pages |
Abstract
Thermoelectric is a green technology to harvest waste heat and convert it to electric energy. N-type SnSe compound with Se vacancies has been synthesized through melting with hot-press. The highest zT value of 0.07 for n-type is obtained at 773â¯K in sample SnSe0.98 along the parallel pressing direction. In addition, the sample SnSe0.98 has shown a remarkable transition between p-type and n-type semiconductor at around 525â¯K. Calculation results show that the large band gap could restrict jump of electrons, leading to a low electrical conductivity. More carriers should be induced to increase the carrier density and to enhance the electrical conductivity by substitution elements minus in Se site.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Qiaoqi Li, Lili Zhang, Jingzhou Yin, Zhenhuan Sheng, Xiaozhong Chu, Fei Wang, Fengxia Zhu,