Halide-exchanged perovskite photodetectors for wearable visible-blind ultraviolet monitoring
Wearable sensing technologies are essential for personalized healthcare via continuously monitoring the surrounding information. Ultraviolet (UV) light, an important component of solar radiation, is recognized as the main inducement of skin cancers. So far, the use of rigid and costly technologies to fabricate UV sensors still hinders their implementation in wearable and portable electronics. Here we present a wearable UV wristband based on a self-powered flexible perovskite photodetector for real-time UV monitoring. Utilizing a solution-assisted halide exchange strategy, device based on CHNHPbCl film exhibits excellent UV detection performance (high responsivity of 359.03 mA/W, fast rise/fall time of 3.91/4.55 ms), outstanding mechanical robustness (remaining over 80% of initial performance after 2500 bending cycles), as well as desirable operational stability (unchanged photoresponse under 500 h of continuous UV light soaking). Integrated with commercially available soft circuits, this fully flexible sensor system enables round-the-clock probing for UV radiation indoor and outdoor in conjunction with necessary environmental information, which can be displayed and recorded on a smartphone, to prevent prolonged UV exposure. The wearable platform not only paves the way for seamlessly integrated photodetectors, but also enables a wide range of personalized environmental and health monitoring applications.
Shen Zhen Science and Technology Innovation Commission["JCYJ20170818114107730","JCYJ20180306174923335"] ; Hong Kong Research Grant Council["16205321","16309018","16214619"] ; Innovation Technology Fund[GHP/014/19SZ] ; Foshan Innovative and Entrepreneurial Research Team Program[2018IT100031] ; Guangdong-Hong Kong-Macao Intelligent Micro-Nano Optoelectronic Technology Joint Laboratory[2020B1212030010]
|WOS Research Area|
Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
|WOS Accession No|
|EI Accession Number|
Flexible Electronics ; Lead Compounds ; Monitoring ; Perovskite Solar Cells ; Photodetectors ; Photons
|ESI Classification Code|
Minerals:482.2 ; Solar Cells:702.3 ; Electronic Equipment, General Purpose And Industrial:715 ; Atomic And Molecular Physics:931.3
Cited Times [WOS]:8
|Document Type||Journal Article|
|Department||SUSTech Institute of Microelectronics|
1.Department of Electronic & Computer Engineering,The Hong Kong University of Science and Technology,Kowloon,Clear Water Bay,Hong Kong
2.Department of Chemical and Biological Engineering,The Hong Kong University of Science and Technology,Kowloon,Clear Water Bay,Hong Kong
3.Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology,The Hong Kong University of Science and Technology,Hong Kong
4.School of Microelectronics,Southern University of Science and Technology,Shenzhen,China
Zhou，Yu,Qiu，Xiao,Wan，Zhu'an,et al. Halide-exchanged perovskite photodetectors for wearable visible-blind ultraviolet monitoring[J]. Nano Energy,2022,100.
Zhou，Yu.,Qiu，Xiao.,Wan，Zhu'an.,Long，Zhenghao.,Poddar，Swapnadeep.,...&Fan，Zhiyong.(2022).Halide-exchanged perovskite photodetectors for wearable visible-blind ultraviolet monitoring.Nano Energy,100.
Zhou，Yu,et al."Halide-exchanged perovskite photodetectors for wearable visible-blind ultraviolet monitoring".Nano Energy 100(2022).
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