Study on the effect of Nb doping on the phase transition temperature of VO2

Xiaoyue Li, Yixin Wang, Bojian Fan, Hong Li, Sujun Shi, Bing Zheng*

*此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

1 引用 (Scopus)

摘要

The application of VO2 is limited by its phase transition temperature from metal to insulator. In this work, a two-step hydrothermal method was applied to explore the thermodynamic properties of Nb-doped VO2. In this way, the temperature of metal-to-insulator transition was largely reduced from 71? for pure VO2 to 34? for Nb-doped VO2. Furthermore, based on the first principles calculation, we investigated the lattice and electronic performances for pure and Nb-doped VO2. The calculations indicated that the difference between monoclinic and metallic structure of Nb-doped VO2 became less than those of pure VO2, which was caused by the displacement of Nb atom. This change played a key role on decreasing the phase transition temperature. In addition, the results of density of states showed that conductivity of Nb-doped VO2 didn't change too much.

源语言英语
主期刊名2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control, METMS 2022
编辑Ya Liu
出版商SPIE
ISBN(电子版)9781510654778
DOI
出版状态已出版 - 2022
活动2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control, METMS 2022 - Guilin, 中国
期限: 7 1月 20229 1月 2022

出版系列

姓名Proceedings of SPIE - The International Society for Optical Engineering
12244
ISSN(印刷版)0277-786X
ISSN(电子版)1996-756X

会议

会议2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control, METMS 2022
国家/地区中国
Guilin
时期7/01/229/01/22

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