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Self-powered flexible artificial synapse for near-infrared light detection
Cell Reports Physical Science ( IF 8.9 ) Pub Date : 2021-07-21 , DOI: 10.1016/j.xcrp.2021.100507
Hao Chen 1 , Lei Lv 1 , Yanan Wei 1 , Tianhua Liu 1 , Song Wang 1 , Qinqin Shi 1 , Hui Huang 1
Affiliation  

In the era of artificial intelligence, photonic artificial synapses that are capable of light detection and information storage are attracting much attention, although complex device configuration and high energy consumption are two remaining challenges. Here, a flexible polymer-based optical synapse for infrared light detection in the absence of applied voltage is fabricated to emulate human synaptic photoplasticity. Investigation into the mechanism of the self-powered properties demonstrates that both the localized electric field of the polyethylene terephthalate (PET) substrate and the high dielectric constant of narrow-band conjugated polymer contribute to spontaneous exciton dissociation. Moreover, array imaging and data encryption are achieved by modulating light for the flexible devices, which exhibit excellent mechanical flexibility and long-term air stability. Thus, this work may provide a strategy to develop self-powered artificial synapses for infrared light detection.



中文翻译:

用于近红外光检测的自供电柔性人工突触

在人工智能时代,具有光检测和信息存储能力的光子人工突触备受关注,但复杂的设备配置和高能耗仍是两个挑战。在这里,制造了一种用于在没有施加电压的情况下进行红外光检测的基于柔性聚合物的光学突触,以模拟人类突触光塑性。对自供电特性机制的研究表明,聚对苯二甲酸乙二醇酯 (PET) 基材的局部电场和窄带共轭聚合物的高介电常数都有助于自发激子解离。此外,通过为柔性设备调制光来实现阵列成像和数据加密,具有优异的机械柔韧性和长期空气稳定性。因此,这项工作可能为开发用于红外光检测的自供电人工突触提供了一种策略。

更新日期:2021-07-21
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