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A bioinspired flexible neuromuscular system based thermal-annealing-free perovskite with passivation

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  • Jiaqi Liu

    (Institute of Photoelectronic Thin Film Devices and Technology of Nankai University; Solar Energy Research Center of Nankai University; Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin; Engineering Research Center of Thin Film Photoelectronic Technology, Ministry of Education, #38 Tongyan Road, Jinnan District
    Shenzhen Research Institute of Nankai University
    Nankai University)

  • Jiangdong Gong

    (Institute of Photoelectronic Thin Film Devices and Technology of Nankai University; Solar Energy Research Center of Nankai University; Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin; Engineering Research Center of Thin Film Photoelectronic Technology, Ministry of Education, #38 Tongyan Road, Jinnan District
    Shenzhen Research Institute of Nankai University
    Nankai University)

  • Huanhuan Wei

    (Institute of Photoelectronic Thin Film Devices and Technology of Nankai University; Solar Energy Research Center of Nankai University; Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin; Engineering Research Center of Thin Film Photoelectronic Technology, Ministry of Education, #38 Tongyan Road, Jinnan District)

  • Yameng Li

    (Institute of Photoelectronic Thin Film Devices and Technology of Nankai University; Solar Energy Research Center of Nankai University; Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin; Engineering Research Center of Thin Film Photoelectronic Technology, Ministry of Education, #38 Tongyan Road, Jinnan District
    Hebei University of Science and Technology)

  • Haixia Wu

    (Hebei University of Science and Technology)

  • Chengpeng Jiang

    (Institute of Photoelectronic Thin Film Devices and Technology of Nankai University; Solar Energy Research Center of Nankai University; Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin; Engineering Research Center of Thin Film Photoelectronic Technology, Ministry of Education, #38 Tongyan Road, Jinnan District
    Shenzhen Research Institute of Nankai University
    Nankai University)

  • Yuelong Li

    (Institute of Photoelectronic Thin Film Devices and Technology of Nankai University; Solar Energy Research Center of Nankai University; Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin; Engineering Research Center of Thin Film Photoelectronic Technology, Ministry of Education, #38 Tongyan Road, Jinnan District)

  • Wentao Xu

    (Institute of Photoelectronic Thin Film Devices and Technology of Nankai University; Solar Energy Research Center of Nankai University; Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin; Engineering Research Center of Thin Film Photoelectronic Technology, Ministry of Education, #38 Tongyan Road, Jinnan District
    Shenzhen Research Institute of Nankai University
    Nankai University)

Abstract

Brain-inspired electronics require artificial synapses that have ultra-low energy consumption, high operating speed, and stable flexibility. Here, we demonstrate a flexible artificial synapse that uses a rapidly crystallized perovskite layer at room temperature. The device achieves a series of synaptic functions, including logical operations, temporal and spatial rules, and associative learning. Passivation using phenethyl-ammonium iodide eliminated defects and charge traps to reduce the energy consumption to 13.5 aJ per synaptic event, which is the world record for two-terminal artificial synapses. At this ultralow energy consumption, the device achieves ultrafast response frequency of up to 4.17 MHz; which is orders of magnitude magnitudes higher than previous perovskite artificial synapses. A multi-stimulus accumulative artificial neuromuscular system was then fabricated using the perovskite synapse as a key processing unit to control electrochemical artificial muscles, and realized muscular-fatigue warning. This artificial synapse will have applications in future bio-inspired electronics and neurorobots.

Suggested Citation

  • Jiaqi Liu & Jiangdong Gong & Huanhuan Wei & Yameng Li & Haixia Wu & Chengpeng Jiang & Yuelong Li & Wentao Xu, 2022. "A bioinspired flexible neuromuscular system based thermal-annealing-free perovskite with passivation," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-35092-w
    DOI: 10.1038/s41467-022-35092-w
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    References listed on IDEAS

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    1. Kaushik Roy & Akhilesh Jaiswal & Priyadarshini Panda, 2019. "Towards spike-based machine intelligence with neuromorphic computing," Nature, Nature, vol. 575(7784), pages 607-617, November.
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