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Silicon-Nanomembrane-Based Broadband Synaptic Phototransistors for Neuromorphic Vision.

Yue WangLei YinShijie HuangRulei XiaoYiqiang ZhangDongke LiXiao Dong PiDeren Yang
Published in: Nano letters (2023)
Neuromorphic vision has been attracting much attention due to its advantages over conventional machine vision (e.g., lower data redundancy and lower power consumption). Here we develop synaptic phototransistors based on the silicon nanomembrane (Si NM), which are coupled with lead sulfide quantum dots (PbS QDs) and poly(3-hexylthiophene) (P3HT) to form a heterostructure with distinct photogating. Synaptic phototransistors with optical stimulation have outstanding synaptic functionalities ranging from ultraviolet (UV) to near-infrared (NIR). The broadband synaptic functionalities enable an array of synaptic phototransistors to achieve the perception of brightness and color. In addition, an array of synaptic phototransistors is capable of simultaneous sensing, processing, and memory, which well mimics human vision.
Keyphrases
  • prefrontal cortex
  • quantum dots
  • high resolution
  • endothelial cells
  • high speed
  • photodynamic therapy
  • working memory
  • high throughput
  • data analysis