Neuromorphic synaptic applications of oxygen-deficient BaSnO3 thin films

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-01-15 DOI:10.1063/5.0244406

Zhongwei Bai, Xuening Fan, Xiaorui Han, Bingcheng Luo

引用次数: 0

Abstract

Cubic barium stannate (BaSnO3) has emerged as a promising platform for optoelectronic devices due to its remarkable room-temperature electron mobility, high transparency, excellent thermal stability, and flexible doping control. In this work, a photonic synaptic device—an image sensor integrating memory and processing—was proposed based on the persistent photoconductivity of oxygen-deficient BaSnO3 thin films. The device demonstrated a light-tunable response, allowing it to replicate key functions of biological synapses. Importantly, this device can be utilized as a reservoir layer in a reservoir computing system, achieving a recognition accuracy of over 90% when identifying handwritten digit images. This work underscores the potential of BaSnO3 for retinomorphic computing applications.

查看原文本刊更多论文

缺氧BaSnO3薄膜在神经形态突触中的应用

立方锡酸钡（BaSnO3）由于其卓越的室温电子迁移率、高透明度、优异的热稳定性和灵活的掺杂控制而成为光电子器件的一个有前途的平台。在这项工作中，提出了一种基于缺氧BaSnO3薄膜的持续光导电性的光子突触装置-一种集记忆和处理为一体的图像传感器。该装置展示了一种光可调的反应，使其能够复制生物突触的关键功能。重要的是，该装置可以作为储层计算系统中的储层，在识别手写数字图像时，识别精度达到90%以上。这项工作强调了BaSnO3在视胚计算应用中的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

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.