Highly uniform photonic synapse arrays based on TIPS-pentacene nanowires/CsPbBr<sub>3</sub> heterojunctions

Hong, Hongyi; Shen, Zihong; Yang, Zunxian; Ye, Yuliang; Ye, Bingqing; Zhou, Yuanqing; Huang, Qiaocan; Wu, Wenbo; Meng, Zongyi; Zeng, Zhiwei; Ye, Songwei; Cheng, Zhiming; Lan, Qianting; Wang, Jiaxiang; Chen, Ye; Zhang, Hui; Guo, Tailiang; Li, Fushan; Weng, Zhenzhen; Chen, Yongyi

doi:10.1039/d3tc01609a

J. Mater. Chem. C

2023

DOI: 10.1039/d3tc01609a

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Highly uniform photonic synapse arrays based on TIPS-pentacene nanowires/CsPbBr₃ heterojunctions

Hongyi Hong,

Zihong Shen,

Zunxian Yang

et al.

Abstract: Abstract： Inspired by the biological visual system, it is of great significance for the development of biomimetic visual systems to integrate large-scale and small-scale organic photon synaptic sensors and further...

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In-Situ Fabricated Transparent Flexible Nanowire Device with Wavelength-Regulated Dual-Function of Photodetector and Photonic Synapse

Chen,

Mao,

Zhou

et al. 2024

ACS Appl. Mater. Interfaces

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Integrating the dual functionalities of a photodetector and photonic synapse into a single device is challenging due to their conflicting requirements for photocurrent decay rates. This study addresses this issue by seamlessly depositing transparent indium tin oxide (ITO) electrodes onto self-oriented copper hexadecafluoro-phthalocyanine (F16CuPc) nanowires growing horizontally along hot-stamped periodic nanogrooves on a transparent flexible polyimide plastic film. This in-situ-fabricated device achieves bending-stable dual functionalities through wavelength regulation while maintaining high transparency and flexibility. Upon exposure to 450–850 nm light, the device exhibits a rapid and sensitive photoresponse with excellent bending stability, making it ideal for optical sensing in both visible and near-infrared spectra. More importantly, the device exhibits a bending-stable excitation postsynaptic current when exposed to light spikes below 405 nm. This enables the successful emulation of various biological synaptic functionalities, including paired-pulse facilitation, spike-number-dependent plasticity, spike-duration-dependent plasticity, spike-rating-dependent plasticity, configurable plasticity between short-term plasticity and long-term plasticity, and memory learning capabilities. Utilizing this device in an artificial neural network achieves a recognition rate of 95% after 57 training epochs. Its ability to switch between photodetection and synaptic modes by adjusting the light wavelength marks a significant advancement in the field of multifunctional flexible electronics based on nanowire arrays.

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In-Situ Fabricated Transparent Flexible Nanowire Device with Wavelength-Regulated Dual-Function of Photodetector and Photonic Synapse

Chen,

Mao,

Zhou

et al. 2024

ACS Appl. Mater. Interfaces

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show abstract

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Highly uniform photonic synapse arrays based on TIPS-pentacene nanowires/CsPbBr₃ heterojunctions

Abstract: Abstract： Inspired by the biological visual system, it is of great significance for the development of biomimetic visual systems to integrate large-scale and small-scale organic photon synaptic sensors and further...

Cited by 1 publication

References 31 publications

In-Situ Fabricated Transparent Flexible Nanowire Device with Wavelength-Regulated Dual-Function of Photodetector and Photonic Synapse

In-Situ Fabricated Transparent Flexible Nanowire Device with Wavelength-Regulated Dual-Function of Photodetector and Photonic Synapse

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Highly uniform photonic synapse arrays based on TIPS-pentacene nanowires/CsPbBr3 heterojunctions

Abstract: Abstract： Inspired by the biological visual system, it is of great significance for the development of biomimetic visual systems to integrate large-scale and small-scale organic photon synaptic sensors and further...

Cited by 1 publication

References 31 publications

In-Situ Fabricated Transparent Flexible Nanowire Device with Wavelength-Regulated Dual-Function of Photodetector and Photonic Synapse

In-Situ Fabricated Transparent Flexible Nanowire Device with Wavelength-Regulated Dual-Function of Photodetector and Photonic Synapse

Contact Info

Product

Resources

About

Highly uniform photonic synapse arrays based on TIPS-pentacene nanowires/CsPbBr₃ heterojunctions