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Eye tracking and eye expression decoding based on transparent, flexible and ultra-persistent electrostatic interface

Author

Listed:
  • Yuxiang Shi

    (Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Peng Yang

    (Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Rui Lei

    (Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences)

  • Zhaoqi Liu

    (Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xuanyi Dong

    (Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xinglin Tao

    (Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xiangcheng Chu

    (Tsinghua University)

  • Zhong Lin Wang

    (Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
    Georgia Institute of Technology)

  • Xiangyu Chen

    (Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

Eye tracking provides valuable insight for analyzing visual attention and underlying thinking progress through the observation of eye movements. Here, a transparent, flexible and ultra-persistent electrostatic sensing interface is proposed for realizing active eye tracking (AET) system based on the electrostatic induction effect. Through a triple-layer structure combined with a dielectric bilayer and a rough-surface Ag nanowire (Ag NW) electrode layer, the inherent capacitance and interfacial trapping density of the electrostatic interface has been strongly enhanced, contributing to an unprecedented charge storage capability. The electrostatic charge density of the interface reached 1671.10 μC·m−2 with a charge-keeping rate of 96.91% after 1000 non-contact operation cycles, which can finally realize oculogyric detection with an angular resolution of 5°. Thus, the AET system enables real-time decoding eye movements for customer preference recording and eye-controlled human-computer interaction, supporting its limitless potentiality in commercial purpose, virtual reality, human computer interactions and medical monitoring.

Suggested Citation

  • Yuxiang Shi & Peng Yang & Rui Lei & Zhaoqi Liu & Xuanyi Dong & Xinglin Tao & Xiangcheng Chu & Zhong Lin Wang & Xiangyu Chen, 2023. "Eye tracking and eye expression decoding based on transparent, flexible and ultra-persistent electrostatic interface," Nature Communications, Nature, vol. 14(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-39068-2
    DOI: 10.1038/s41467-023-39068-2
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    References listed on IDEAS

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