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1 August 2021 Flexible ultrathin single-crystalline perovskite photodetector
Jie He, Hao Jing, Cheng-Yao Li, Renhao Fan, Dongxiang Qi, Ru-Wen Peng, Mu Wang
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Proceedings Volume 11796, Active Photonic Platforms XIII; 117962G (2021) https://doi.org/10.1117/12.2593409
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States
Abstract
Flexible optoelectronic devices attract considerable attention due to their prominent role in creating novel wearable apparatus for bionics, robotics, health care, and so forth. Although bulk single-crystalline perovskite-based materials are well-recognized for the high photoelectric conversion efficiency than the polycrystalline ones, their stiff and brittle nature unfortunately prohibits their application for flexible devices. Here, we introduce ultrathin single-crystalline perovskite film as the active layer and demonstrate a high-performance flexible photodetector with prevailing bending reliability. With a much reduced thickness of 20 nm, the photodetector made of this ultrathin film can achieve a responsivity much higher than that of recently reported flexible perovskite photodetectors. The demonstrated 0.2 MHz 3 dB bandwidth further paves the way for high-speed photodetection.
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Jie He, Hao Jing, Cheng-Yao Li, Renhao Fan, Dongxiang Qi, Ru-Wen Peng, and Mu Wang "Flexible ultrathin single-crystalline perovskite photodetector", Proc. SPIE 11796, Active Photonic Platforms XIII, 117962G (1 August 2021); https://doi.org/10.1117/12.2593409
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KEYWORDS
Photodetectors
Perovskite
Optoelectronic devices
Biomimetics
Medicine
Optoelectronics
Reliability
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