writer：Shuai Hao, Chen Yang, Xuemeng Yang, Tianci Li, Lianhua Ma, Yunhong Jiao,* and Hongzan Song*.
keywords：luminescent ionogel, coordination bonds, crosslink-enhanced emission, encryption and anti-counterfeiting, wearable sensor
source：期刊
specific source：ACS Appl. Mater. Interfaces
Issue time：2023年

Traditional luminescent ionogels often suffer from

poor mechanical properties and a lack of recyclability and

regeneration, which limits their further application and sustainable

development. Herein, a luminescent ionogel with strong

mechanical properties and good recyclability has been designed

and fabricated by introducing dynamic coordination bonds via in

situ one-step crosslinking of acrylic acid in ionic liquid of 1-ethyl-3-

methylimidazolium diethylphosphate by zinc dimethacrylate. Due

to the special crosslinking of dynamic coordination bonds along

with the hydrogen bond interaction, the as-prepared ionogel

displays excellent stretchability and toughness, good self-adhesiveness,

fast self-healability, and recyclability. Interestingly, the

obtained ionogels exhibit tunable photoluminescence caused by

the crosslink-enhanced emission (CEE) effect from the coordination bonds. Importantly, ionogels can be applied in information

storage, information encryption, anti-counterfeiting due to their simple and in situ preparation method, and their special fluorescence

performances. Moreover, an ionogel-based wearable sensor has rapid response time and a high gauge factor of 3.22 within a wide

strain range from 1 to 700%, which can monitor various human movements accurately from subtle to large-scale motions. This paper

offers a promising way to fabricate sustainable functional ionic liquid-based composites with CEE characteristics via an in situ onestep

polymerization method.