A simple and low-cost combustion method to prepare monoclinic VO(2) with superior thermochromic properties

In this approach, the VO(2) nanoparticles have been successfully fabricated via combusting the low-cost precursor solution consisted of NH(4)VO(3), C(2)H(6)O(2) and C(2)H(5)OH. By the XRD, TEM and XPS analysis, it can be found that the synthetic monoclinic VO(2) is single crystal and no impurity is defined. After dispersing the VO(2) nanoparticles into the polymer, the solar modulation of VO(2)-based composite film is up to 12.5% with luminous transmission and haze around 62.2% and 0.5%, respectively. In other words, the composite films show high performance of thermochromic properties. This could open an efficient way to fabricate low-cost and large-scale VO(2) (M) nanoparticles and thermochromic films.