Manufacturing method of vanadium dioxide powder having thermochromic properties and optical properties and manufacturing method of vanadium dioxide thin film using the vanadium dioxide powder

摘要

The present invention relates to a method for producing vanadium dioxide powder having thermochromic and optical properties, and a method for manufacturing a vanadium dioxide thin film using the vanadium dioxide powder. The method for producing vanadium dioxide powder of the present invention comprises the steps of: mixing and heating ammonium metavanadate (NH_4VO_3) and ethylene glycol (C_2H_6O_2) to allow a reaction thereof; selectively separating a precipitate formed by the reaction to obtain vanadyl ethylene glycolate powder; and forming vanadium dioxide (VO_2) powder with properties of blocking near-infrared rays. Accordingly, vanadium dioxide powder having high purity and crystallinity degree are able to be produced.