PbS/CsPbBr3 宽带神经形象视觉传感的异质连接
Kangmin Leng1, Zhiqiang Guo1, Junming Chen1
1Department of Physics, School of Physics and Materials Science, Nanchang University, Nanchang 330031, China.
ACS applied materials & interfaces
|February 1, 2024
概括
这项研究引入了一种新的神经形态视觉传感器,使用硫化 (PbS) 和化 (CsPbBr3) 异构结构. 该设备提供可调节的宽带光响应,用于先进的人工智能视觉传感.
科学领域:
- 材料科学 材料科学 材料科学
- 光电学是指光电子产品.
- 人工智能的人工智能
背景情况:
- 与传统视觉芯片相比,神经形态光传感器提供能源效率和低延迟.
- 金属化物矿对视觉传感器来说是有前途的,因为它们的光物质相互作用和可通过离子迁移调节的光响应性.
- 在矿中同时实现广谱响应和可调节响应仍然是增强图像识别的挑战.
研究的目的:
- 开发一个宽带神经形态视觉传感器,具有可调节的光响应性,从可见光 (Vis) 到近红外 (NIR) 频谱.
- 调查矿中离子迁移在异构结构中的影响,以获得先进的传感器功能.
- 实现基于机器学习的图像处理,包括模式识别和边缘增强,用于人工智能视觉传感.
主要方法:
- 使用PbS和CsPbBr3.3的单晶制造PbS/CsPbBr3异构结构.
- 电场的应用以诱导离子迁移和动态能量带曲在异质连接接口.
- 测试传感器在Vis-to-NIR频谱中的光响应及其与卷积神经网络处理的兼容性.
主要成果:
- 通过PbS和CsPbBr3的合来展示一个宽带神经形态视觉传感器 (Vis-to-NIR).
- 由于电场诱导的离子迁移,在CsPbBr3.Br中观察可逆,多级和线性调节的光响应性.
- 成功实施卷积神经网络处理用于模式识别和边缘增强,使用传感器的可重新配置的宽带响应.
结论:
- PbS/CsPbBr3异构结构使神经形态视觉感知具有高度可调和的宽带光响应.
- 动态能量带曲机制促进了先进的图像处理能力.
- 这种异构结构对开发下一代人工智能视觉系统具有重大潜力.
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