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

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 cm² V^-1 s^-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 device

SUBMITTER: Jiang T 

PROVIDER: S-EPMC10628194 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature