Flexible DPPT-TT/PEO Fiber-Exploiting Electro-optical Synaptic Transistor for Artificial Withdrawal Reflex Arc

IF 17.2 1区工程技术 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Advanced Fiber Materials Pub Date : 2024-01-10 DOI:10.1007/s42765-023-00356-7

Shangda Qu, Jiaqi Liu, Jiahe Hu, Lin Sun, Wentao Xu

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Abstract

An artificial withdrawal reflex arc that can realize neuromorphic tactile perception, neural coding, information processing, and real-time responses was fabricated at the device level without dependence on algorithms. As an extended application, the artificial reflex arc was used to perform an object-lifting task based on tactile commands, and it can easily lift a 200-g weight. A fiber-exploiting electro-optical synaptic transistor (FEST) was fabricated to emulate synaptic plasticity modulated by electrical or optical spikes. Due to an ultrahigh spike duration-dependent plasticity index (~ 12,651%), the FEST was applied in electro-optical encrypted communication tasks and effectively increased signal recognition accuracy. In addition, the FEST has excellent bending resistance (bending radii = 0.6–1.4 cm, bending cycles > 2000) and stable illumination responses for a wide range of incident angles (0°–360°), demonstrating its potential applicability in wearable electronics. This work presents new design strategies for complete artificial reflex arcs and wearable neuromorphic devices, which may have applications in bioinspired artificial intelligence, human–machine interaction, and neuroprosthetics.

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灵活的 DPPT-TT/PEO 光纤--利用电光突触晶体管实现人工牵拉反射弧

我们在不依赖算法的情况下，在设备层面制造出了一种能够实现神经形态触觉感知、神经编码、信息处理和实时响应的人工撤退反射弧。作为一项扩展应用，人工反射弧被用于执行基于触觉指令的物体举起任务，它可以轻松举起 200 克的重物。我们制作了一个光纤利用电光突触晶体管（FEST），以模拟由电或光尖峰调制的突触可塑性。由于具有超高的随尖峰持续时间变化的可塑性指数（约为 12651%），FEST 被应用于光电加密通信任务中，并有效提高了信号识别的准确性。此外，FEST 还具有出色的抗弯曲性（弯曲半径 = 0.6-1.4 厘米，弯曲周期 > 2000），以及在宽入射角（0°-360°）范围内稳定的照明响应，证明了其在可穿戴电子设备中的潜在应用价值。这项工作为完整的人工反射弧和可穿戴神经形态设备提出了新的设计策略，可应用于生物启发人工智能、人机交互和神经假肢等领域。

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来源期刊

Advanced Fiber Materials Multiple-

CiteScore

18.70

自引率

11.20%

发文量

109

期刊介绍： Advanced Fiber Materials is a hybrid, peer-reviewed, international and interdisciplinary research journal which aims to publish the most important papers in fibers and fiber-related devices as well as their applications.Indexed by SCIE, EI, Scopus et al. Publishing on fiber or fiber-related materials, technology, engineering and application.