变革性的多功能深紫外线光探测器用于按需应用:从快速光通信到可调节的传感器内光电流集成
Mohit Kumar1,2, Hayoung Park1, Hyungtak Seo1,2
1Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea.
ACS applied materials & interfaces
|May 20, 2024
概括
本研究介绍了一种可调节的氧化光探测器,具有可调节的短暂响应,用于快速的光通信和缓慢的神经形态传感. 它可以在各种应用中实现按需的传感器内光学处理.
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
- 设备物理 设备物理
背景情况:
- 光探测器的短暂响应对于光通信和神经形态传感等应用至关重要.
- 现有的设备通常提供快速或缓慢的响应,限制了多功能性.
- 将可调节的短暂响应集成到单个设备中是非常可取的.
研究的目的:
- 开发一种单一的光电探测器,能够提供快速和缓慢的短暂响应.
- 为了弥合光通信和神经形态光电子之间的差距.
- 创建一个多功能平台,以在需要时进行传感器内光学处理.
主要方法:
- 基于氧化 (Ga2O3) 的光电探测器的设计和制造.
- 在深紫外线照明下,光电流的开/关比,响应能力和检测能力的表征.
- 使用静电力显微镜研究电压依赖的短暂响应时间.
主要成果:
- 实现了接近10^4的光电流开/关比,响应率为0.43 A/W,检测能力为1.22 × 10^13 Jones.
- 根据操作电压,可调节的短暂响应时间从10^-4到0.2秒.
- 确定了电压依赖的光载体生成和与缺陷相关的再组合作为潜在的机制.
结论:
- 开发的Ga2O3光电探测器提供可调节的短暂响应,使各种应用成为可能.
- 潜在的应用包括数字和模拟莫尔斯码解释和可调光学输入集成.
- 这项工作为传感器内光学处理提供了一种多功能方法,适用于光通信和神经形态传感.
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