TY - JOUR
T1 - Birdlike broadband neuromorphic visual sensor arrays for fusion imaging
AU - Xie, Pengshan
AU - Xu, Yunchao
AU - Wang, Jingwen
AU - Li, Dengji
AU - Zhang, Yuxuan
AU - Zeng, Zixin
AU - Gao, Boxiang
AU - Quan, Quan
AU - Li, Bowen
AU - Meng, You
AU - Wang, Weijun
AU - Li, Yezhan
AU - Yan, Yan
AU - Shen, Yi
AU - Sun, Jia
AU - Ho, Johnny C.
PY - 2024
Y1 - 2024
N2 - Wearable visual bionic devices, fueled by advancements in artificial intelligence, are making remarkable progress. However, traditional silicon vision chips often grapple with high energy losses and challenges in emulating complex biological behaviors. In this study, we constructed a van der Waals P3HT/GaAs nanowires P-N junction by carefully directing the arrangement of organic molecules. Combined with a Schottky junction, this facilitated multi-faceted birdlike visual enhancement, including broadband non-volatile storage, low-light perception, and a near-zero power consumption operating mode in both individual devices and 5 × 5 arrays on arbitrary substrates. Specifically, we realized over 5 bits of in-memory sensing and computing with both negative and positive photoconductivity. When paired with two imaging modes (visible and UV), our reservoir computing system demonstrated up to 94% accuracy for color recognition. It achieved motion and UV grayscale information extraction (displayed with sunscreen), leading to fusion visual imaging. This work provides a promising co-design of material and device for a broadband and highly biomimetic optoelectronic neuromorphic system. © The Author(s) 2024.
AB - Wearable visual bionic devices, fueled by advancements in artificial intelligence, are making remarkable progress. However, traditional silicon vision chips often grapple with high energy losses and challenges in emulating complex biological behaviors. In this study, we constructed a van der Waals P3HT/GaAs nanowires P-N junction by carefully directing the arrangement of organic molecules. Combined with a Schottky junction, this facilitated multi-faceted birdlike visual enhancement, including broadband non-volatile storage, low-light perception, and a near-zero power consumption operating mode in both individual devices and 5 × 5 arrays on arbitrary substrates. Specifically, we realized over 5 bits of in-memory sensing and computing with both negative and positive photoconductivity. When paired with two imaging modes (visible and UV), our reservoir computing system demonstrated up to 94% accuracy for color recognition. It achieved motion and UV grayscale information extraction (displayed with sunscreen), leading to fusion visual imaging. This work provides a promising co-design of material and device for a broadband and highly biomimetic optoelectronic neuromorphic system. © The Author(s) 2024.
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U2 - 10.1038/s41467-024-52563-4
DO - 10.1038/s41467-024-52563-4
M3 - RGC 21 - Publication in refereed journal
C2 - 39333067
SN - 2041-1723
VL - 15
JO - Nature Communications
JF - Nature Communications
M1 - 8298
ER -