Table 2 Categorization of deformable hydrogel photonic devices
Type | Ref. | Fabrication | Hydrogel | Stimulus | Application |
|---|---|---|---|---|---|
Film | Spin-coating | chitosan | Relative humidity | Sensing | |
chitosan | Encryption | ||||
polyvinyl alcohol | Edge-detection | ||||
Surface-initiate atomic transfer radical polymerization (SI-ATRP) | poly(N-isopropylacrylamide) | Temperature | Sensing | ||
Spin-coating | poly(N-isopropylacrylamide)-acrylamidobenzophenone | Relative humidity | |||
poly(N,N′-Dimethylaminoethyl methacrylate) | pH | Display | |||
polyvinyl alcohol | Relative humidity | Sensing | |||
Structure | Photolithography | poly(HEMA-co-AAc) | Ethanol | Sensing | |
poly(ethylene glycol)diacrylate | Relative humidity, volatile vapor | Encryption | |||
Photo-polymerization | poly(ethylene glycol), poly(HEMA-co-AA-co-MAA) | Water, pH | Sensing | ||
poly(N-isopropylacrylamide) | Temperature | Display | |||
acrylamide, poly(ethylene glycol)diacrylate | Water | Display | |||
E-beam lithography | polyvinyl alcohol | Relative humidity | Display | ||
Display | |||||
Sensing | |||||
Nanoimprint lithography | polyvinyl alcohol | Relative humidity | Display | ||
Encryption | |||||
poly(2-hydroxyethyl methacrylate) | Sensing |
