biostudies-literatureUnknown15(1)Shi BShanghai Jiao Tong UniversityPhotodetectors with long detection distances and fast response are important media in constructing a non-contact human-machine interface for the Masterly Internet of Things (MIT). All-inorganic perovskites have excellent optoelectronic performance with high moisture and oxygen resistance, making them one of the promising candidates for high-performance photodetectors, but a simple, low-cost and reliable fabrication technology is urgently needed. Here, a dual-function laser etching method is developed to complete both the lyophilic split-ring structure and electrode patterning. This novel split-ring structure can capture the perovskite precursor droplet efficiently and achieve the uniform and compact deposition of CsPbBr₃ films. Furthermore, our devices based on laterally conductNano-micro letters3https://www.ebi.ac.uk/biostudies/studies/S-EPMC9709000biostudies-literatureSplit-Ring Structured All-Inorganic Perovskite Photodetector Arrays for Masterly Internet of Things.PMC9709000Yang GWu JWang PShi BFeng JXue CZhang XLiao QZhang MWen WfalseSplit-Ring Structured All-Inorganic Perovskite Photodetector Arrays for Masterly Internet of Things.Photodetectors with long detection distances and fast response are important media in constructing a non-contact human-machine interface for the Masterly Internet of Things (MIT). All-inorganic perovskites have excellent optoelectronic performance with high moisture and oxygen resistance, making them one of the promising candidates for high-performance photodetectors, but a simple, low-cost and reliable fabrication technology is urgently needed. Here, a dual-function laser etching method is developed to complete both the lyophilic split-ring structure and electrode patterning. This novel split-ring structure can capture the perovskite precursor droplet efficiently and achieve the uniform and compact deposition of CsPbBr₃ films. Furthermore, our devices based on laterally conduct2022-01-01T00:00:00Z2022 Nov2025-04-03T21:31:02.743Z2025-04-03T21:31:02.743ZS-EPMC97090003644555810.1007/s40820-022-00961-y