Developments of Thermochromic VO2-Based Thin Films for Architectural Glazing

Abstract

Investigation on properties of vanadium dioxide (VO2) thin films has received significant attention as it is a thermochromic material potentially for applications on architectural glazing in order to reduce energy consumption from usage of air-conditioning system. Most studies have focused on the hysteresis behavior of thermochromic VO2 thin films that occurs at a certain phase transition temperature. Although large area coating techniques have recently been developed, there are still many obstacles in trying to deploy energy-efficient windows. Hence, this work concisely reviews on VO2 thin films as thermochromic materials, and developments on preparation methodologies in order to enhance the thermochromic characteristics of VO2 thin films.