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将紫外线传感和记忆功能集成到基于化的光电子设备中
Kuan-Chang Chang1, Xibei Feng1, Xinqing Duan1
1School of Electronic and Computer Engineering, Peking University Shenzhen Graduate School, Shenzhen, 518055, China. lilei@pkusz.edu.cn.
Nanoscale horizons
|April 26, 2024
概括
研究人员使用化 (GaN) 开发了一种新的紫外线 (UV) 光电记忆,它可以看到和记住图像. 该设备提供长期存储紫外线视觉信息,推进人工视觉系统.
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.
- 固态物理 固态物理
背景情况:
- 光电子设备旨在模仿人类视觉系统,但缺乏持久的图像存储器.
- 存储紫外线 (UV) 图像对于捕获隐形视觉信息至关重要.
- 现有的技术很难将光学数据的传感和记忆功能集成在一起.
研究的目的:
- 开发一款具有集成传感和存储能力的多级别紫外线光电子记忆装置.
- 为了增强在刺激被移除后对光学图像信息的保留.
- 探索UV光电子记忆在人工视觉应用中的潜力.
主要方法:
- 制造基于化 (GaN) 的多级紫外线光电子存储器.
- 整合SiO2侧门,以延长光生成载体的使用寿命.
- 使用值电压和开启状态电流用于双模式紫外线信号存储.
主要成果:
- 该GaN设备展示了强大的紫外线传感和记忆,保留时间> 4 × 10^4s和> 1 × 10^5编程/删除周期.
- 通过调整门电压,实现了五种不同的存储状态,具有出色的保留和可调节的擦除时间.
- 通过使用集成的GaN光电子记忆阵列,成功捕获和存储UV图像超过7天.
结论:
- 开发的GaN光电子存储器成功地集成了紫外线传感和长期数据存储.
- 该设备表现出高性能,稳定性和UV视觉信息的多层存储能力.
- 这一进步为未来需要长时间光学内存的人工视觉系统带来了巨大的潜力.
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