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

作     者：Bori Shi Pingyang Wang Jingyun Feng Chang Xue Gaojie Yang Qingwei Liao Mengying Zhang Xingcai Zhang Weijia Wen Jinbo Wu Bori Shi;Pingyang Wang;Jingyun Feng;Chang Xue;Gaojie Yang;Qingwei Liao;Mengying Zhang;Xingcai Zhang;Weijia Wen;Jinbo Wu

作者机构：Materials Genome InstituteShanghai UniversityShanghai 200444People’s Republic of China Zhejiang LaboratoryHangzhou 311100People’s Republic of China HKUST Shenzhen-Hong Kong Collaborative Innovation Research InstituteFutianShenzhenPeople’s Republic of China School of EngineeringMassachusetts Institute of TechnologyCambridgeMA 02139USA School of Engineering and Applied SciencesHarvard UniversityCambridgeMA 02138USA Department of PhysicsShanghai UniversityShanghai 200444People’s Republic of China The Advanced Material ThrustThe Hong Kong University of Science and Technology(Guangzhou)GuangzhouPeople’s Republic of China 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2023年第15卷第1期

页      面：25-42页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：support by the Key Research Project of Zhejiang Laboratory(N.O.2021PE0AC02) the National Natural Science Foundation of China(N.O.11674210) the Project of Hetao Shenzhen-Hong Kong Science and Technology Innovation Cooperation Zone(HZQB-KCZYB-2020083) 

主　　题：Split-ring Dewetting Perovskite photodetector array Human-machine interface Gesture recognition 

摘      要：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 ***,a dual-function laser etching method is developed to complete both the lyophilic split-ring structure and electrode *** novel split-ring structure can capture the perovskite precursor droplet efficiently and achieve the uniform and compact deposition of CsPbBr3 ***,our devices based on laterally conducting split-ring structured photodetectors possess outstanding performance,including the maximum responsivity of 1.44×105 mA W^(−1),a response time of 150μs in 1.5 kHz and one-unit area4×10-2 *** on these split-ring photodetector arrays,we realized three-dimensional gesture detection with up to 100 mm distance detection and up to 600 mm s^(−1) speed detection,for low-cost,integrative,and non-contact human-machine ***,we applied this MIT to wearable and flexible digital gesture recognition watch panel,safe and comfortable central controller integrated on the car screen,and remote control of the robot,demonstrating the broad potential applications.