Direct laser writing on halide semiconductor perovskites: From mechanisms to applications

"interaction between laser (efficient, contactless, mask-free depth-resolved micro-patterning) and metal halide perovskite (high photoluminescence quantum yield, high absorption coefficient, tunable bandgaps, long carrier diffusion lengths)... cheaper, flexibly controllable fabrication lasers, perovskite's superior optoelectronic properties... as single photon source, micro/nano lasers, photo-detectors, optical gates, waveguide, optical communication, nonlinear optics"