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- W4377029332 abstract "Abstract Ambient temperature long‐wavelength infrared (LWIR) photodetection has many critical applications ranging from thermal imaging and optical communications to night vision cameras. Currently, high performance, low cost, air stability, and ultra‐broadband response still constitute challenges. Here, the study demonstrates a high‐performance uncooled LWIR photodetector using 2D hexagonal α ‐Fe 2 O 3 single crystal nanoflakes, which are synthesized via chemical vapor deposition. The 2D α ‐Fe 2 O 3 photodetector realizes high specific detectivity ( D * ) of 3.28×10 9 cmHz 1/2 W −1 and very low noise equivalent power of 8.94×10 −14 W Hz −1/2 with 10.6 µm laser. The photo bolometer effect is responsible for the photoresponse in the infrared range with a large temperature coefficient resistance of −241.2% K −1 . This study shows a new type of potential broadband response material and provides a promising LWIR optoelectrical device with good air stability." @default.
- W4377029332 created "2023-05-19" @default.
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- W4377029332 date "2023-05-18" @default.
- W4377029332 modified "2023-10-17" @default.
- W4377029332 title "Highly Sensitive Long‐Wave Infrared Photodetector Based on Two‐Dimensional Hematite <i>α</i>‐Fe<sub>2</sub>O<sub>3</sub>" @default.
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- W4377029332 doi "https://doi.org/10.1002/adom.202300382" @default.
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