초록 |
Photonic crystal sensor has gained researchers’ attention due to advantageous features such as no requirement of detection system. It changes its reflective color by external stimuli by Bragg's law. In this study, we investigate aldehyde responsive photonic gel sensor by opal templating method that can be used for breath analyzer. Although majority of hydrogel sensors operate in aqueous environment, the hydroxyethylmethacrylate photonic gel sensor in F-containing ionic liquid exhibited low volatility, good thermal stability, and selective color tunability by aldehyde and alcohol vapor without interference of water. The sensor responses were rigorously investigated with various vapor concentrations and temperature. |