Distributed Bragg reflectors with high robustness and responsiveness from UV-Curable resins

Distributed Bragg reflectors (DBRs), the simplest photonic crystals, have received extensive attention due to their unique characteristics and appealing applications. Herein, we aim to demonstrate a facile and cost-effective approach for fabrication of organic/inorganic hybrids by using commercially available ultraviolet (UV)-curable resins to give DBRs with a high reflectance from only a few stacks of the organic/inorganic hybrid layer. With the use of the UV-crosslinked resins, the fabricated DBRs exhibit a high robustness against moisture and organic solvents. Also, for applications, the DBRs possess good performances with reversible response to organic solvent vapors. Moreover, the enhanced photoluminescence of methylamino lead bromide perovskite (CH 3 NH 3 PbBr 3 ) and tetraphenylethene (TPE) by hybrid DBRs was investigated. This work may provide new insights into the fabrication and applications of DBRs.