积极的反 有机上升转换设备
Raju Lampande1, Jon-Paul DesOrmeaux2, Adrian Pizano1
1Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan, 48109, USA.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|November 10, 2025
概括
新的混合光电子上升转换设备增强了近红外光检测. 这些有机/设备实现了显著的光子对光子增益,为先进的成像和计算应用铺平了道路.
科学领域:
- 光电学是指光电子产品.
- 材料科学 材料科学 材料科学
- 光子学 是一个光子学.
背景情况:
- 积极反向上转换装置提供光电子比分稳定性和高光子对光子增益.
- 应用包括夜视和神经形态图像分类.
研究的目的:
- 引入一种新的混合设备架构,将有机发光二极管 (OLED) 与有机/ (Si) 异质连接光二极管集成在一起.
- 研究这些设备的近红外 (NIR) 光探测和升级功能的性能.
主要方法:
- 混合装置的制造,该装置结合了双联OLED和有机/Si异质连接光二极管.
- 描述设备对NIR光线的反应,直至1.1微米.
- 分析增益,响应速度和交叉通话效应.
主要成果:
- 混合设备对近红外光线的反应大约为1.1微米.
- 在输入光强度低于1μW cm-2.2时,达到9x的峰值光子对光子向上转换增益.
- 尽量减少光二极管电容对于最大化响应速度至关重要.
- 像素化设备中的电交叉声可以导致级联效应.
结论:
- 开发的混合架构代表了与Si微电子相容的光电子上转换器的重大进步.
- 克服电话交叉对实际的像素化设备来说至关重要.
- 未来的工作可以通过使用替代无机半导体平台,如 (Ge) 或甲 (InGaAs),将响应能力扩展到进一步的NIR.
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