高性能近红外光探测器基于门控制的石墨烯 - 肖特基结与分裂活跃结
Cihyun Kim1, Tae Jin Yoo1, Min Gyu Kwon2
1Department of Electrical Engineering, Pohang University of Science and Technology, 77, Cheongam-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do, 37673, Republic of Korea.
Nanophotonics (Berlin, Germany)
|December 5, 2024
概括
通过分割活性区域优化了石墨烯/光探测器,大大提高了红外探测. 这种增强的结构实现了双倍的响应和检测能力,为更敏感的红外传感应用铺平了道路.
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
- 半导体物理 半导体物理
背景情况:
- 石墨烯/异构在光探测器应用中是有前途的.
- 优化设备架构对于增强红外探测能力至关重要.
- 现有的石墨烯/光探测器在灵敏度和性能方面存在局限性.
研究的目的:
- 为了优化一个门控制的石墨烯/混合光电探测器的结构.
- 为了提高红外探测的灵敏度和效率.
- 调查分裂活性区域对光探测器性能的影响.
主要方法:
- 设计和制造了一种门控制的石墨烯/混合光电探测器,具有分裂活性区域.
- 分析了设备内部的内部电场分布.
- 测量响应性,特异检测性,暗电流和外部量子效率.
主要成果:
- 分开的活跃连接设计显著加强了内部电场.
- 实现了2.02 A/W的响应度和5.28 × 10^10 斯的特定检测度.
- 与单个主动连接装置相比,表现出超过两倍的性能.
- 它的性能比以前的石墨烯/Ge光探测器设计高1.7,2.7和39.
结论:
- 分离活性区域是优化石墨烯/混合光探测器的有效策略.
- 优化的设备具有优越的红外探测能力,可减少暗电流和提高效率.
- 这项工作为开发高度敏感的红外传感技术提供了途径.
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