CdSe quantum dots photoelectric memristors for simulating biological visual system behavior

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2024-11-05 DOI:10.1063/5.0232757

Hui He, Zhicheng Zeng, Yifei Pei, Xiangyang Liu, Xiaobing Yan

引用次数: 0

Abstract

The visual system is the most important in the biological neurosensory system, so simulation of the biological visual system is the key for developing artificial nervous system. This work incorporates a CdSe quantum dot layer into silk fibroin based memristor device, endowing the devices with light-responsive capability. Furthermore, interesting phenomena were observed when the device operated as artificial synapses: excessive voltage stimulation led to a reduction in synaptic weight compared to the responses observed under normal electrical stimulation. This behavior mirrors sensations associated with pain, neuroprotection, and potential injuries to the neural system. At the end, we designed a visual perception system, simulating processes of the biological light intensity perception and the visual degradation response under intense light stimulation. Our research demonstrates the feasibility of constructing an artificial visual nervous system using a hardware system based on memristors.

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用于模拟生物视觉系统行为的硒化镉量子点光电记忆器

视觉系统是生物神经感觉系统中最重要的系统，因此模拟生物视觉系统是开发人工神经系统的关键。这项研究在基于丝纤维素的忆阻器器件中加入了碲化镉量子点层，使器件具有光响应能力。此外，当该装置作为人工突触运行时，还观察到了有趣的现象：与正常电刺激下观察到的反应相比，过高的电压刺激会导致突触重量减少。这种行为反映了与疼痛、神经保护和神经系统潜在损伤相关的感觉。最后，我们设计了一个视觉感知系统，模拟生物光强感知过程和强光刺激下的视觉退化反应。我们的研究证明了利用基于忆阻器的硬件系统构建人工视觉神经系统的可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.