Organic Synaptic Transistors Based on C8-BTBT/PMMA/PbS QDs for UV to NIR Face Recognition Systems.

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY Nano Letters Pub Date : 2025-03-05 Epub Date: 2025-02-20 DOI:10.1021/acs.nanolett.5c00032

Tianyang Feng, Hang Xu, Yafen Yang, Xuemeng Hu, Tianyu Wang, Hao Zhu, Qingqing Sun, David Wei Zhang, Jialin Meng, Lin Chen

引用次数: 0

Abstract

Developing optoelectronic synaptic devices with low power consumption, broadband response, and biological compatibility is crucial to simulate the functions of optic nerve. Here, an organic synapse transistor based on C8-BTBT/PMMA/PbS quantum dots (PbS QDs) is fabricated, which has good stability, low power consumption (as low as 0.49 fJ per event under 800 nm near-infrared optical pulse), and broadband response from ultraviolet to near-infrared wavelengths. Based on the trap and release of photogenerated carriers by PbS QDs, a series of synaptic behaviors are simulated by the device. Furthermore, we use artificial neural network as the model to realize the recognition of facial feature image in the broad spectral range; the recognition rate reached 96.25% (350 nm ultraviolet), 92.14% (580 nm visible), and 90.03% (800 nm near-infrared). This work is beneficial for advancing the development of future artificial intelligence vision sensing.

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基于C8-BTBT/PMMA/PbS量子点的有机突触晶体管用于紫外到近红外人脸识别系统。

开发具有低功耗、宽带响应和生物相容性的光电突触器件是模拟视神经功能的关键。本文制备了一种基于C8-BTBT/PMMA/PbS量子点（PbS QDs）的有机突触晶体管，该晶体管具有良好的稳定性、低功耗（800 nm近红外光脉冲下每事件低至0.49 fJ）和紫外至近红外波段的宽带响应。基于PbS量子点对光生载流子的捕获和释放，该装置模拟了一系列突触行为。在此基础上，以人工神经网络为模型，实现了广谱范围内人脸特征图像的识别；其识别率分别为96.25% （350 nm紫外）、92.14% （580 nm可见光）和90.03% （800 nm近红外）。这一工作对于推进未来人工智能视觉传感的发展是有益的。

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

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.