Retina-inspired organic neuromorphic vision sensor with polarity modulation for decoding light information

Ting Jiang; Yiru Wang; Wanxin Huang; Haifeng Ling; Guofeng Tian; Yunfeng Deng; Yanhou Geng; Deyang Ji; Wenping Hu

doi:10.1038/s41377-023-01310-3

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Retina-inspired organic neuromorphic vision sensor with polarity modulation for decoding light information

Original Articles

- Retina-inspired organic neuromorphic vision sensor with polarity modulation for decoding light information
- Light: Science & Applications Vol. 12, Issue 11, Pages: 2508-2518(2023)
- Affiliations：
  
  1.Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, Institute of Molecular Aggregation Science, Tianjin University, 300072 Tianjin, China
  2.Haihe Laboratory of Sustainable Chemical Transformations, 300192 Tianjin, China
  3.State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials, Nanjing University of Posts & Telecommunications, 210023 Nanjing, China
  4.State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
  5.School of Materials Science and Engineering, Tianjin University, 300072 Tianjin, China
  6.Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, 300072 Tianjin, China
  7.Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, 300072 Tianjin, China
- Author bio：
  
  Deyang Ji (jideyang@tju.edu.cn)
- Funds：
- DOI：10.1038/s41377-023-01310-3
  CLC：
- Published：30 November 2023，
  
  Published Online：07 November 2023，
  
  Received：25 May 2023，
  
  Revised：07 October 2023，
  
  Accepted：16 October 2023
- Accepted：
Scan QR Code
Jiang, T. et al. Retina-inspired organic neuromorphic vision sensor with polarity modulation for decoding light information. Light: Science & Applications, 12, 2508-2518 (2023).
DOI：

Jiang, T. et al. Retina-inspired organic neuromorphic vision sensor with polarity modulation for decoding light information. Light: Science & Applications, 12, 2508-2518 (2023). DOI： 10.1038/s41377-023-01310-3.

摘要

Abstract

The neuromorphic vision sensor (NeuVS)

which is based on organic field-effect transistors (OFETs)

uses polar functional groups (PFGs) in polymer dielectrics as interfacial units to control charge carriers. However

the mechanism of modulating charge transport on basis of PFGs in devices is unclear. Here

the carboxyl group is introduced into polymer dielectrics in this study

and it can induce the charge transfer process at the semiconductor/dielectric interfaces for effective carrier transport

giving rise to the best device mobility up to 20 cm

−1

at a low operating voltage of −1 V. Furthermore

the polarity modulation effect could further increase the optical figures of merit in NeuVS devices by at least an order of magnitude more than the devices using carboxyl group-free polymer dielectrics. Additionally

devices containing carboxyl groups improved image sensing for light information decoding with 52 grayscale signals and memory capabilities at an incredibly low power consumption of 1.25 fJ/spike. Our findings provide insight into the production of high-performance polymer dielectrics for NeuVS devices.

关键词

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references

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