二氧化硅保护工艺改善锂离子电解质门控晶体管突触重量稳定性

IF 3.5 2区 物理与天体物理 Q2 PHYSICS, APPLIED
Han Xu, Jikai Lu, Yue Li, Renrui Fang, Woyu Zhang, Xiaoxin Xu, Yan Wang, Qi Liu, Dashan Shang
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引用次数: 0

摘要

基于锂离子的电解质门控晶体管(Li-EGTs)作为突触器件已被广泛研究,因为它们有潜力提供良好的通道电导模拟切换,这是模拟突触重量调制的理想特性。然而,在器件制造过程中,锂离子电解质的化学活性不利于Li-EGT的模拟开关稳定性,并限制了其潜在应用。在这项工作中,我们开发了一种用于制造Li EGT的二氧化硅保护工艺。通过连续沉积锂离子电解质和二氧化硅保护层,我们在器件制造过程中实现了电解质与外部环境的隔离。电学特性表明,所制备的Li-EGT的模拟开关稳定性显著提高。基于实验数据,通过使用手写数字数据集的模拟,在Li EGT阵列中已经证明了~96%的识别准确率。目前的结果使我们深入了解了用于神经形态计算的Li EGT突触的大规模制造。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improvement of weight stability in Li-ion-based electrolyte-gated transistor synapse by silica protective process
Li-ion-based electrolyte-gated transistors (Li-EGTs) have been extensively studied as synaptic devices due to their potential to provide good analog switching of channel conductance, which is a desirable property for the emulation of synaptic weight modulation. However, the chemical activity of lithium ion electrolytes during device fabrication is detrimental to the analog switching stability of the Li-EGT and limits its potential application. In this work, we developed a silica protective process for Li-EGT fabrication. By continuously depositing the lithium ion electrolyte and silica protective layer, we achieved the isolation of the electrolyte from the external environment during device fabrication. The electrical characterization shows that the analog switching stability of the fabricated Li-EGT is significantly improved. Based on the experimental data, a recognition accuracy of ∼96% has been demonstrated in the Li-EGT array by simulations using the handwritten digit data sets. The present results give insight into the large-scale fabrication of the Li-EGT synapse for neuromorphic computing.
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来源期刊
Applied Physics Letters
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.
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