Composite Film of Vanadium Dioxide Nanoparticles and Ionic Liquid–Nickel–Chlorine Complexes with Excellent Visible Thermochromic Performance

• DOI: 10.1021/acsami.6b11202
• Publication Date: 2016-10-14T13:57:51Z
• Authors: Jingting Zhu; Aibin Huang; Haibin Ma; Yining Ma; Kun Tong; Shidong Ji; Shanhu Bao; Xun Cao; Ping Jin
• Keywords: Vanadium dioxide; Thermochromism; Titanium Dioxide

Vanadium dioxide (VO2), as a typical thermochromic material used in smart windows, is always limited by its weaker solar regulation efficiency (ΔTsol) and lower luminous transmittance (Tlum). Except for common approaches such doping, coating, special structure, compositing another effective method. The macroscopic (from colorless to blue) ionic liquid–nickel–chlorine (IL–Ni–Cl) complexes are selected this paper be combined with VO2 nanoparticles forming composite film. This novel scheme demonstrates outstanding optical properties: ΔTsol = 26.45% Tlum,l 66.44%, Tlum,h 43.93%. Besides, the addition of IL–Ni–Cl endows film an obvious color change from light brown dark green temperature rises. splendid visible performance makes superior function exhibiting application windows.