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.
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