Issue 46, 2022

Decoupling the metal–insulator transition temperature and hysteresis of VO2 using Ge alloying and oxygen vacancies

Abstract

The metal-to-insulator transition of VO2 underpins applications in thermochromics, neuromorphic computing, and infrared vision. Ge alloying is shown to elevate the transition temperature by promoting V–V dimerization, thereby expanding the stability of the monoclinic phase to higher temperatures. By suppressing the propensity for oxygen vacancy formation, Ge alloying renders the hysteresis of the transition exquisitely sensitive to oxygen stoichiometry.

Graphical abstract: Decoupling the metal–insulator transition temperature and hysteresis of VO2 using Ge alloying and oxygen vacancies

Supplementary files

Article information

Article type
Communication
Submitted
20 Marts 2022
Accepted
09 Maijs 2022
First published
10 Maijs 2022

Chem. Commun., 2022,58, 6586-6589

Author version available

Decoupling the metal–insulator transition temperature and hysteresis of VO2 using Ge alloying and oxygen vacancies

P. Schofield, E. J. Braham, B. Zhang, J. L. Andrews, H. K. Drozdick, D. Zhao, W. Zaheer, R. M. Gurrola, K. Xie, P. J. Shamberger, X. Qian and S. Banerjee, Chem. Commun., 2022, 58, 6586 DOI: 10.1039/D2CC01599D

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