Thermoelectric Properties of Two-Dimensional Gallium Telluride

被引：0
作者：
Hejing Shangguan
Lihong Han
Tao Zhang
Ruge Quhe
Qian Wang
Shanjun Li
Pengfei Lu
机构：
[1] Beijing University of Posts and Telecommunications,State Key Laboratory of Information Photonics and Optical Communications
[2] Beijing University of Posts and Telecommunications,School of Science
[3] Sichuan University,College of Electrical Engineering and Information Technology
来源：
Journal of Electronic Materials | 2019年 / 48卷
关键词：
First-principles; two-dimensional GaTe; hexagonal structure; monoclinic structure; thermoelectric transport properties; figure of merit (; );
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Phonon, electronic and thermoelectric transport properties of two-dimensional (2D) GaTe with hexagonal structure and monoclinic structure are investigated by using first-principles calculations. Stability of these structures are confirmed by phonon dispersion calculations. The hexagonal structure shows better thermoelectric properties because of its lower thermal conductivity, higher electrical conductivities and Seebeck coefficients. The maximum value of the figure of merit (ZT) for GaTe reaches 0.85 for hexagonal structure when T = 1100 K. This indicates that 2D GaTe will be useful in the field of thermoelectric applications.
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页码：5988 / 5994
页数：6
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