响应度
光电探测器
材料科学
比探测率
光电子学
异质结
制作
极化(电化学)
钙钛矿(结构)
光学
化学
医学
替代医学
物理
物理化学
病理
结晶学
作者
Shun‐Xin Li,Jia‐Cheng Feng,Yang An,Hong Xia
出处
期刊:Photonics Research
[The Optical Society]
日期:2023-12-01
卷期号:11 (12): 2231-2231
被引量:1
摘要
The fabrication of different perovskite materials with superior properties into lateral heterostructures can greatly improve device performance and polarization sensitivity. However, the sensitivity of perovskites to solvents and environmental factors makes the fabrication of lateral heterojunctions difficult. Here, we realize high-quality perovskite microwire crystal heterojunction arrays using regioselective ion exchange. Photodetectors with responsivity and detectivity up to 748 A W −1 and 8.2×10 12 Jones are fabricated. The photodetector exhibits responsivity as high as 13.5 A W −1 at 0 V bias. In addition, the device exhibits ultra-high polarization sensitivity with a dichroic ratio of 5.6, and 81% of its performance was maintained after 144 days of exposure to air.
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