Provided is a method for manufacturing VO_2 thin film using a sol-gel method. By manufacturing a high-density uniform thin film while precisely controlling to be formed in a monoclinic crystal VO_2 crystal phase, thermochromic properties and efficiency are significantly improved, and reflux reaction time is innovatively reduced, so it is economical since process time can be reduced and excessive energy consumption can be prevented.;COPYRIGHT KIPO 2017
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