基于a-Sb2O5/a-Ga2O3异构连接的双极响应深紫外光探测器用于加密和反干扰通信
Cheng Wu1,2, Peiwen Lv1,2,3, Zhaojie Zhu1,3
1State Key Laboratory of Functional Crystals and Devices, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou City, Fujian Province, 350002, P. R. China. pwlv@fjirsm.ac.cn.
Materials horizons
|October 9, 2025
概括
这项研究引入了一种新型的深紫外光探测器,使用基于SbV的氧化物. 该设备具有波长电压控制的双极光流切换,增强光通信的安全性和可靠性.
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.
- 半导体物理 半导体物理
背景情况:
- 基于Sb (V) 的氧化物为光电接口提供了深度带边和有利的带对齐.
- 整合正光导率 (PPC) 和负光导率 (NPC) 提高了光探测器的功能.
- 异构结构对于先进的光探测器应用至关重要.
研究的目的:
- 开发一个具有协同波长电压双极光电流切换的深紫外光探测器.
- 为了研究a-Sb2O5/a-Ga2O3异构结构中的接口状态的载体捕获机制.
- 探索双向光响应的潜力,以实现安全的光通信.
主要方法:
- 制造一种无形的氧化/氧化 (a-Sb2O5/a-Ga2O3) 异构结构.
- 在不同波长和电压下,光探测器响应的表征.
- 对负责双极光电流切换的载体捕获机制的分析.
主要成果:
- 证明了波长-电压协同双极光电流切换.
- 观察到负光导电性 (NPC) 响应率为0.71 mA W-1 (0 V,287 nm) 和正光导电性 (PPC) 响应率为1.05 mA W-1 (1 V,303 nm).
- 在0.5V的过渡电压下,与短波长NPC和长波长PPC实现了双向光电流.
结论:
- a-Sb2O5 / a-Ga2O3异构连接光探测器对光通信设备具有显著的潜力.
- 双向光响应增强了通信机密性,并通过双极编码和错误校正降低了位错误率.
- 对双极反应的波长-电压控制是专门通信环境的关键.
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