Near infrared neuromorphic computing via upconversion-mediated optogenetics

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

2 Scopus Citations
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Author(s)

  • Yongbiao Zhai
  • Ye Zhou
  • Wenbin Ye
  • Xiaojian Zhu
  • Donghong She
  • Wei D. Lu
  • Su-Ting Han

Detail(s)

Original languageEnglish
Article number104262
Journal / PublicationNano Energy
Volume67
Online published6 Nov 2019
Publication statusPublished - Jan 2020

Abstract

Near infrared (NIR) synaptic devices offer a remote-control approach to implement neuromorphic computing for data safety and artificial retinal system applications. In upconverting nanoparticles (UCNPs)-mediated optogenetics biosystems, NIR regulation of membrane ion channels allows remote and selective control of the Ca2+ flux to modulate synaptic plasticity behaviors. Inspired by the upconversion optogenetics, we proposed a NIR artificial synapse based on a UCNPs-MoS2 floating gate phototransistor in which MoS2 acts as light-sensitive ion channels to reabsorb the visible light emitted from UCNPs under NIR illumination. As a result, the synaptic device exhibits stable persistent photocurrent (PPC) effect up to 353 K and ultrahigh photogain (~108 electrons per photon), ensuring the long-term potentiation (LTP) behavior. Simulations using the handwritten digit data sets indicate good recognition accuracy of the light-controlled artificial neuron network. Overall, this design concept combining biology, optics and electronics opens up a new avenue for developing optogenetics-inspired neuromorphic technology in the future.

Research Area(s)

  • Long-term potentiation, Near-infrared light, Neuromorphic computing, Optoelectronics, Optogenetics

Citation Format(s)

Near infrared neuromorphic computing via upconversion-mediated optogenetics. / Zhai, Yongbiao; Zhou, Ye; Yang, Xueqing; Wang, Feng; Ye, Wenbin; Zhu, Xiaojian; She, Donghong; Lu, Wei D.; Han, Su-Ting.

In: Nano Energy, Vol. 67, 104262, 01.2020.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal