WO3 Inversce Opal Photonic Crystals: Unique Property, Synthetic Methods and Extensive Application

Tungsten trioxide inverse opal photonic crystals (WO3 IOPCs) not only possess the intrinsic properties of WO3, but also own the unique characteristics of IOPCs structure. The evolution of preparation method of WO3 IOPCs has been briefly presented as electrodeposition method, sol-gel methodology and 'dynamic hard-template' strategy in this review. Then the crystalline structure, optical property and electrical performance of WO3 IOPCs are later described. Afterwards, this review focuses on the wide application of WO3 IOPCs in chemical sensor, photo(electro)catalysis, electrochromic material and photochromic field in the last decade. Finally, a brief outlook over future investigation in preparation and modification, as well as promising application is proposed. This paper aims to encourage the attention and effort of researchers on WO3 IOPCs and other semiconductor materials with IOPCs structure.

Automated summary

This paper presents the evolution, structure, properties, and applications of tungsten trioxide inverse opal photonic crystals (WO3 IOPCs), as well as outlooks on future research focus and direction.