A pleasant blue-green colored 2D vanadium dioxide inverse opal monolayer: large area fabrication and its thermochromic application

Abstract

Crack-free large-area synthesis of two dimensional (2D) VO2 inverse opal (IO) films are fabricated by an improved “dynamic hard-template infiltration” strategy using a sacrificial PS spheres photonic crystal as template....

2D vanadium oxide inverse opal films: cycling stability exploration as an electrochromic active electrode

“…Fabrication of the V 2 O 5 monolayer inverse opal 2D V 2 O 5 monolayer inverse opal (IO) was synthesized using a ''dynamic-hard template'' infiltration strategy. 26 First, a clean functionalized glass slide was placed on the bottom of a Petri dish, followed by barely submerging the slide with Millipore water. The pure PS particle suspension (0.6% w/v) was added dropwise on the surface of the water over the glass slide to get a self-assembled monolayer of PS spheres on the water surface.…”

“…Apart from these strategies, although many reports have mentioned that pores in the electrode benefit cycling stability, it is unclear what role the pore size plays in that matter. In this work, we adapted our recently developed ''dynamic hard template infiltration strategy'' 26,27 to fabricate a series of twodimensional (2D) V 2 O 5 IO films of different pore sizes on ITO substrates, showing well arrayed pore structures, which were used to explore in depth the effect of the pore size and phase composition on cycling stability of vanadium oxides. This work also permitted understanding the correlation between electrochromic cycling stability and electrochemical cycling stability.…”

Green Thermochromic Materials: A Brief Review

“…[12,62] These VO 2 based materials have a brown-yellow color which is not ideal for applications in smart windows with common transition colors from yellow to green, yellow to blue or yellow to brown. [64][65][66] However, the material can be modified via doping with metals such as tungsten or strontium or by the addition of the VO 2 nanoparticles into transparent polymers to form composites with reduced color or increased transparency. [11,21,22,64,67] Wang et al developed Mg/W codoped VO 2 to increase the transmittance of light.…”

Influence of VO2 based structures and smart coatings on weather resistance for boosting the thermochromic properties of smart window applications

“…Combining VO 2 particles with polymers and two dimensional materials is deemed to boost the thermochromic properties of VO 2 -hybrids for long term durability. [86][87][88][89][90] W. Li and coworkers arranged useful ber mats with tunable diffuse reectance and VO 2 /PVP composite ber mats. 91 The VO 2 /PVP composite bers were scattered by the inter-ber scattering process, which means light phenomena.…”