WANG Cong^a， KANG Weifeng^a， ZHANG Linhui^a,b， XU Yonghong^a， ZHONG Binnian^a,b

(a. College of Mechanical Engineering; b. Qinghai Provincial Key Laboratory of New Light Alloys, Qinghai University, Xining 810016, China)

Abstract: Taking bismuth telluride (Bi2Te3) as the research object, 6 typical preparation methods of Bi2Te3 nanomaterials, such as gas-phase synthesis, template electrodeposition, solvothermal, gas phase transfer, electrical displacement and new low-temperature double solvent sol-gel method, were reviewed. The applications of Bi2Te3 nanomaterials in photodetectors, solar cells and thermoelectric generators were summarized. It is proposed that low-cost, efficient and controllable preparation of Bi2Te3 nanomaterials is an important prerequisite for its further application. In the future research, we should focus on reducing the material dimension or doping to build thermoelectric devices with high figure of merit and heterojunction to build optoelectronic devices with high photoresponse performance.

Keywords: bismuth trituride; nanomaterials; semiconductor; thermoelectric device; photoresponse

中图分类号：TB321

文献标志码：A

文章编号：1008-5548(2021)05-0111-09

DOI:10.13732/j.issn.1008-5548.2021.05.014

收稿日期： 2021-05-17，修回日期：2021-06-12，在线出版时间：2021-08-17 10:54。

基金项目：青海省自然科学基金青年项目，编号：201-ZJ-957Q。

第一作者简介：王聪(2001—)，女，研究方向为碲化物半导体纳米材料。E-mail: wangcong@qhu.edu.cn。

通信作者简介：仲斌年(1988—)，男，博士，副教授，研究方向为窄带隙半导体纳米材料及其光电响应性能。E-mail: bnzhong@qhu.edu.cn。