Retina‐Inspired Self‐Powered Artificial Optoelectronic Synapses with Selective Detection in Organic Asymmetric Heterojunctions

Hao, Ziqian; Wang, Hengyuan; Jiang, Sai; Qian, Jun; Xu, Xin; Li, Yating; Pei, Mengjiao; Zhang, Bowen; Guo, Jun; Zhao, Huijuan; Chen, Jiaming; Tong, Yunfang; Wang, Jianpu; Wang, Xinran; Shi, Yi

doi:10.1002/advs.202103494

Cited by 45 publications

(41 citation statements)

References 67 publications

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“…4,5 In the aspect of function, it is capable of converting light signals into electrical signals, followed by pre-processing and transmitting them to the visual cortex of the human brain, which plays a crucial role in shaping human visual perception. 6–10 Recently, with the general trends of visual prosthetics and artificial intelligence, diverse types of artificial visual systems inspired by the retina have been developed for potential applications. 11–15 Nevertheless, it remains a considerable challenge to achieve an elastic artificial visual system due to difficulties in preparing intrinsically stretchable photodetectors with neuromorphic image sensing functions.…”

Section: Introductionmentioning

confidence: 99%

“…21–23 Currently, although the reported photonic synaptic transistors can mimic the neuromorphic function of the retina, most of them are made of inorganic 24–27 or non-stretchable organic materials. 1–30 This makes it impossible to resist dynamic deformation and conform well to a three-dimensional (3D) hemispherical surface like the soft and elastic retina. Consequently, this issue inevitably impedes the development of the bio-inspired neuromorphic visual system and its further application in the future for visual prosthetics and artificial intelligence.…”

Section: Introductionmentioning

confidence: 99%

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Intrinsically stretchable photonic synaptic transistors for retina-like visual image systems

Zhang

Zhao

et al. 2022

J. Mater. Chem. C

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Intrinsically stretchable photonic synaptic transistors for retina-like visual image systems

Zhang

Zhao

et al. 2022

J. Mater. Chem. C

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confidence: 99%

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confidence: 99%

“…Logic devices coupled with light provide a promising pathway toward bringing the processing closer to the data, with improved computational efficiency; additionally, they can be dedicated to functional applications such as sensing. For example, Hao et al proposed a self-powered optoelectronic synapse based on organic asymmetric heterojunctions that can realize sensing and multimode logic computation for the mimic of the retina . Furthermore, Pei et al demonstrated an optically modulated organic neuromem with a two-terminal planar architecture using ferroelectric polymers and small-molecule semiconductors (Figure a–c) .…”

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confidence: 99%

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Emerging Logic Devices beyond CMOS

Hao

Yang

Shi

et al. 2022

J. Phys. Chem. Lett.

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Si-based complementary metal-oxide-semiconductor (CMOS) transistors for logic computing have represented the most essential foundation of digital electronic technologies for decades toward the modern information era. The continuous scaling down of the transistor feature size has promoted significant improvements in the computing performance while gradually tending to its limit. Ubiquitous intelligent technologies have quickly penetrated daily life, yielding a tremendous increase in highly data-centric computing applications. Hence, emerging logic devices extending and even transcending the existing CMOS technology are urgently needed to meet the rapidly growing demand for information processing capability, involving revolutionary innovations from material science and architecture design to device applications. This thus gives us the opportunity to realize logic devices for state-of-the-art computing that are fundamentally far beyond the current devices. In this Perspective, we discuss the recent innovative design strategies of emerging logic devices along with the opportunities and challenges, providing a promising avenue toward highperformance and diversiform logic computing in the post-Moore era.

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Retina‐Inspired Artificial Synapses with Ultraviolet to Near‐Infrared Broadband Responses for Energy‐Efficient Neuromorphic Visual Systems

Zhang

Guo

et al. 2023

Adv Funct Materials

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Neuromorphic visual system with image perception, memory, and preprocessing functions is expected to simulate basic features of the human retina. Organic optoelectronic synaptic transistors emulating biological synapses may be promising candidates for constructing neural morphological visual system. However, the sensing wavelength range of organic optoelectronic synaptic transistors usually limits their potential in artificial multispectral visual perception. Here, retina‐inspired optoelectronic synaptic transistors that present broadband responses covering ultraviolet, visible, and near‐infrared regions are demonstrated, which leverage the wide‐range photoresponsive charge trapping layer and the heterostructure formed between PbS quantum dots and organic semiconductor. Simplified neuromorphic visual arrays are developed to simulate comprehensive image perception, memory, and preprocessing functions. Benefitting from the flexibility of the charge trapping and organic semiconductor layers, a flexible neuromorphic visual array can be fabricated, having an ultralow power consumption of 0.55 fJ per event under a low operating voltage of −0.01 V. More significantly, an accelerating image preprocessing effect can be observed in a wide wavelength range even beyond the perception range of the human visual system, due to the gate‐adjustable synaptic plasticity. These devices are highly promising for implementing neuromorphic visual systems with broadband perception, increasing image processing efficiency, and promoting the development of artificial vision.

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Retina‐Inspired Self‐Powered Artificial Optoelectronic Synapses with Selective Detection in Organic Asymmetric Heterojunctions

Cited by 45 publications

References 67 publications

Intrinsically stretchable photonic synaptic transistors for retina-like visual image systems

Intrinsically stretchable photonic synaptic transistors for retina-like visual image systems

Emerging Logic Devices beyond CMOS

Retina‐Inspired Artificial Synapses with Ultraviolet to Near‐Infrared Broadband Responses for Energy‐Efficient Neuromorphic Visual Systems

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