Split-Ring Structured All-Inorganic Perovskite Photodetector Arrays for Masterly Internet of Things

Highlights The split-ring topography is studied systematically from wettability, evaporation assembly to optoelectronic devices. An efficient dual-function laser etching scheme has been developed to fabricate the split-ring lyophilic pattern and the lateral electrode array simultaneously. A non-contact human-machine interface based on CsPbBr3 perovskite photodetector arrays has been successfully applied to wearable devices, automobile displays, robot remote control.