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Self-Powered Optoelectronic Device with Depression-Related Synaptic Functions Self-Powered Optoelectronic Device with Depression-Related Synaptic Functions AITranslate

Mingqing Cui; Pengfei Zhao; Chunli Jiang; Bobo Tian; Chunhua Luo; Hechun Lin; Hui Peng; ChunGang Duan
East China Normal University; East China Normal University; East China Normal University; East China Normal University; East China Normal University; East China Normal University; East China Normal University; East China Normal University
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Publisher: ACS
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Abstract AITranslate

Great effort has been made for the development of optoelectronic synapses that play an important role in constructing artificial visual systems. However, most reported optoelectronic synaptic devices have difficulty mimicking depression-related synaptic functions under optical stimulation. Herein, we report a self-powered optoelectronic synaptic device based on an organic heterojunction of poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE))/copper phthalocyanine (CuPc)/hexadecafluorophthalocyanine copper (F16CuPc). A dielectric layer of P(VDF-TrFE) was induced to generate an energy barrier to improve its synaptic performance. The fabricated device exhibited inhibitory postsynaptic current (IPSC) function under continuous stimulation of 660 nm optical pulses. Some basic functions of biological synapse, such as paired-pulse depression (PPD), spiking-number-dependent plasticity (SNDP), and spiking-rate-dependent plasticity (SRDP), were successfully mimicked. The capability of the device as a low-pass filter for image processing was also demonstrated.

KeyWords AITranslate

artificial synapses selfpowered optoelectronics organic heterojunction lowpass filter image blurring
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Basic Information:

DOI：https://doi.org/10.1021/acsaelm.3c00407

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Citation Information:

Great effort has been made for the development of optoelectronic synapses that play an important role in constructing artificial visual systems. However, most reported optoelectronic synaptic devices have difficulty mimicking depression-related synaptic functions under optical stimulation. Herein, we report a self-powered optoelectronic synaptic device based on an organic heterojunction of poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE))/copper phthalocyanine (CuPc)/hexadecafluorophthalocyanine copper (F16CuPc). A dielectric layer of P(VDF-TrFE) was induced to generate an energy barrier to improve its synaptic performance. The fabricated device exhibited inhibitory postsynaptic current (IPSC) function under continuous stimulation of 660 nm optical pulses. Some basic functions of biological synapse, such as paired-pulse depression (PPD), spiking-number-dependent plasticity (SNDP), and spiking-rate-dependent plasticity (SRDP), were successfully mimicked. The capability of the device as a low-pass filter for image processing was also demonstrated.

quote

GB/T 7714-2015 [1] Mingqing Cui, Pengfei Zhao, Chunli Jiang, et al. ACS Applied Electronic Materials, 2023(5). DOI:10.1021/acsaelm.3c00407.
MLA [1] Mingqing Cui, et al., ACS Applied Electronic Materials, no. 5, 2023, https://doi.org/10.1021/acsaelm.3c00407.
APA [1] Mingqing Cui, Pengfei Zhao, Chunli Jiang, Bobo Tian, Chunhua Luo, Hechun Lin, Hui Peng, & ChunGang Duan. (2023). ACS Applied Electronic Materials(5). https://doi.org/10.1021/acsaelm.3c00407
IEEE [1] Mingqing Cui, Pengfei Zhao, Chunli Jiang, Bobo Tian, Chunhua Luo, Hechun Lin, Hui Peng, and ChunGang Duan, ACS Applied Electronic Materials, no. 5, 2023, doi: 10.1021/acsaelm.3c00407. keywords: {artificial synapses selfpowered optoelectronics organic heterojunction lowpass filter image blurring}