Inorganic semiconductor arrays revolutionize many areas of electronics, optoelec
tronics with the properties of multifunctionality and large-scale integration. Metal
halide perovskites are emerging as candidates for next-generation optoelectronic
devices due to their excellent optoelectronic properties, ease of processing, and
compatibility with flexible substrates. To date, a series of patterning technologies
have been applied to perovskites to realize array configurations and nano/micro
structured surfaces to further improve device performances. Herein, various
construction methods for perovskite crystal or thin film arrays are summarized.
The optoelectronic applications of the perovskite arrays are also discussed, in
particular, for photodetectors, light-emitting diodes, lasers, and nanogratings.
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