Developments of Thermochromic VO₂–Based Thin Films For Architectural Glazing

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. (paper)