Multicolor photonic patterns through an intensity-controlled single photopolymerization step.

The UV intensity during photopolymerization allows control over the structural color of a cholesteric liquid crystal (CLC) polymer photonic coating in a single step. Simultaneously, the glass transition temperature () of the polymer can be tuned by the applied UV intensity. Most likely the low intensity photopolymerization increases the inhibition time, leading to formation of polymer fragments through oxygen inhibition.