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Cited by 43Perovskite Materials and ApplicationsHand Gesture Recognition SystemsAdvanced Semiconductor Detectors and Materials

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

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Shi, Bori, Wang, Pingyang, Feng, Jingyun, Xue, Chang, Yang, Gaojie, Liao, Qingwei, Zhang, Mengying, Zhang, Xingcai +2 more·2023·Nano-Micro Letters
DOI 10.1007/s40820-022-00961-yPMC PMC9709000
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Abstract

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 CsPbBr 3 films. Furthermore, our devices based on laterally conducting split-ring structured photodetectors possess outstanding performance, including the maximum responsivity of 1.44 × 10 5 mA W−1, a response time of 150 μs in 1.5 kHz and one-unit area < 4 × 10–2 mm 2. Based 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 interfaces. Finally, 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.

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  • Shi et al. developed high-performance CsPbBr3-based photodetectors capable of 3D gesture detection with a range up to 100 mm and speeds of 600 mm/s.

    “Shi et al. [208] developed high-performance CsPbBr 3based photodetectors capable of 3D gesture detection with a range of up to 100 mm and speeds of 600 mm/s, enabling low-cost, noncontact human-machine interfaces.”

    From Design Strategies and Emerging Applications of Perovskite-Based Sensors (2025) · cites this paper as [208]

  • The device, featuring a split-ring structured photodetector, offers a durable and sterile alternative to mechanical buttons, with applications in human-machine interaction.

    “The device, featuring a split-ring structured photodetector, offers a durable and sterile alternative to mechanical buttons, with applications in human-machine interaction.”

    From Design Strategies and Emerging Applications of Perovskite-Based Sensors (2025) · cites this paper as [208]

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Cited by

Sorted by citations

Authors
Shi, B., Wang, P., Feng, J., Xue, C., Yang, G., Liao, Q., Zhang, M., Zhang, X., Wen, W., & Wu, J.
Affiliations
  • Shanghai University (CN)
  • Massachusetts Institute of Technology (US)
  • Harvard University (US)
  • Hong Kong University of Science and Technology (HK)
Corresponding author
  • Zhang, Xingcai
  • Wu, Jinbo
ORCID
Venue
Nano-Micro Letters
Publisher
Springer Science and Business Media LLC
Published
2022-11-29
Volume
15
Issue
1
Pages
3-3
ISSN
  • 2150-5551 (ISSN-L)
  • 2311-6706
DOI
10.1007/s40820-022-00961-y
PMC
PMC9709000
OpenAlex
W4310588886
Cited by
43
References
4
Citations by year
2026: 7 · 2025: 15 · 2024: 11 · 2023: 10
FWCI
2.47
Type
journal article
Language
en
Open access
Licence
Locations
  • Nano-Micro Letters (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
  • Greater South Information System
Funders
Shanghai Jiao Tong University
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Perovskite Materials and Applications
  • Physical Sciences › Computer Science › Human-Computer Interaction › Hand Gesture Recognition Systems
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Semiconductor Detectors and Materials
Keywords
all-inorganic perovskites, CsPbBr3, photodetector arrays, laser etching, electrode patterning, gesture recognition, Internet of Things, wearable devices, flexible displays, telerobotics

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