Electrothermally control of dynamic infrared switching of VO2 thin film on FTO glass

Toward controlling the metal-insulator transition (MIT) of VO2 in a facile method for dynamically tuning infrared transmission, we report one-step VO2 thin film deposition on FTO/glass substrate without post annealing using the reactive sputtering deposition technique. The MIT of VO2 thin films and their infrared modulation characteristics were investigated. Using the FTO underlayer as a resistive heating element, the MIT of large area VO2 thin films can be easily achieved. Dynamic tuning the infrared transmission or abrupt infrared switching through voltage control was demonstrated. Our results suggest that voltage driven VO2/FTO/glass through electrothermally control VO2 phase change can be a promising candidate for smart window and infrared switching applications. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

The metal-insulator transition (MIT) and infrared modulation characteristics of one-step deposited VO2 thin films on FTO/glass substrates were investigated, demonstrating the dynamic tuning of infrared transmission or abrupt infrared switching through voltage control. The results suggest that voltage driven VO2/FTO/glass systems could be promising candidates for smart window and infrared switching applications.