Reusable Structural Colored Nanostructure for Powerless Temperature and Humidity Sensing (Advanced Optical Materials 16/2023)

In article number 2300300, Debachis Chanda and co-workers show that integration of an ultrathin layer poly(N-isopropylacrylamide) (PNIPAM) onto a self-assembled aluminum nanostructure results in the production tunable thermoresponsive gap-plasmon can transduce environmental changes temperature humidity into color variation via deformation polymer. This new composite material function as fully-reusable, battery-less sensor, well tamper-proof dew label be conveniently read through simple smartphone application.