Issue

Vol. 15 (2023)

Organic Optoelectronic Synapses for Sound Perception

https://doi.org/10.1007/s40820-023-01116-3
Yanan Wei
College of Materials Science and Opto‑Electronic Technology and Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physic, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Youxing Liu
School of Materials Science and Engineering, Peking University, Beijing 100871, People’s Republic of China
Qijie Lin
College of Materials Science and Opto‑Electronic Technology and Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physic, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Tianhua Liu
College of Materials Science and Opto‑Electronic Technology and Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physic, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Song Wang
College of Materials Science and Opto‑Electronic Technology and Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physic, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Hao Chen
College of Materials Science and Opto‑Electronic Technology and Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physic, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Congqi Li
College of Materials Science and Opto‑Electronic Technology and Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physic, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Xiaobin Gu
College of Materials Science and Opto‑Electronic Technology and Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physic, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Xin Zhang
College of Materials Science and Opto‑Electronic Technology and Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physic, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
Hui Huang
College of Materials Science and Opto‑Electronic Technology and Center of Materials Science and Optoelectronics Engineering, CAS Center for Excellence in Topological Quantum Computation, CAS Key Laboratory of Vacuum Physic, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China

Corresponding Author: Hui Huang

huihuang@ucas.ac.cn

Nano-Micro Letters, Vol. 15 (2023), Article Number: 133

Abstract

The neuromorphic systems for sound perception is under highly demanding for the future bioinspired electronics and humanoid robots. However, the sound perception based on volume, tone and timbre remains unknown. Herein, organic optoelectronic synapses (OOSs) are constructed for unprecedented sound recognition. The volume, tone and timbre of sound can be regulated appropriately by the input signal of voltages, frequencies and light intensities of OOSs, according to the amplitude, frequency, and waveform of the sound. The quantitative relation between recognition factor (ζ) and postsynaptic current (I = Ilight − Idark) is established to achieve sound perception. Interestingly, the bell sound for University of Chinese Academy of Sciences is recognized with an accuracy of 99.8%. The mechanism studies reveal that the impedance of the interfacial layers play a critical role in the synaptic performances. This contribution presents unprecedented artificial synapses for sound perception at hardware levels.


Highlights:


1 The organic optoelectronic synapse achieves unprecedented sound perception on volume, tone and timbre simultaneously.
2 The quantitative relationship between the interfacial layers and synaptic performances is clarified.

Keywords

Organic optoelectronic synapse Sound perception Recognition factor Impedance spectroscopy Interfacial layer
Wei, Yanan, Youxing Liu, Qijie Lin, Tianhua Liu, Song Wang, Hao Chen, Congqi Li, Xiaobin Gu, Xin Zhang, and Hui Huang. 2023. “Organic Optoelectronic Synapses for Sound Perception”. Nano-Micro Letters 15 (May):133. https://doi.org/10.1007/s40820-023-01116-3.
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