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- W4385077101 abstract "Abstract Gallium oxide (Ga 2 O 3 ) based flexible heterojunction type deep ultraviolet (UV) photodetectors show excellent solar-blind photoelectric performance, even when not powered, which makes them ideal for use in intelligent wearable devices. However, traditional flexible photodetectors are prone to damage during use due to poor toughness, which reduces the service life of these devices. Self-healing hydrogels have been demonstrated to have the ability to repair damage and their combination with Ga 2 O 3 could potentially improve the lifetime of the flexible photodetectors while maintaining their performance. Herein, a novel self-healing and self-powered flexible photodetector has been constructed onto the hydrogel substrate, which exhibits an excellent responsivity of 0.24 mA/W under 254 nm UV light at zero bias due to the built-in electric field originating from the PEDOT: PSS/Ga 2 O 3 heterojunction. The self-healing of the Ga 2 O 3 based photodetector was enabled by the reversible property of the synthesis of agarose and polyvinyl alcohol double network, which allows the photodetector to recover its original configuration and function after damage. After self-healing, the photocurrent of the photodetector decreases from 1.23 to 1.21 μ A, while the dark current rises from 0.95 to 0.97 μ A, with a barely unchanged of photoresponse speed. Such a remarkable recovery capability and the photodetector’s superior photoelectric performance not only significantly enhance a device lifespan but also present new possibilities to develop wearable and intelligent electronics in the future." @default.
- W4385077101 created "2023-07-23" @default.
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- W4385077101 date "2023-07-01" @default.
- W4385077101 modified "2023-10-16" @default.
- W4385077101 title "Self-healing wearable self-powered deep ultraviolet photodetectors based on Ga<sub>2</sub>O<sub>3</sub>" @default.
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- W4385077101 doi "https://doi.org/10.1088/1674-4926/44/7/072807" @default.
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