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- W3119354831 abstract "Abstract In this work, a type-III heterojunction based on a pulsed-laser-deposited vanadium dioxide (VO 2 ) and p-type silicon (p-Si) substrate is realized. The device shows a large self-powered and room-temperature photoresponse to IR (950 nm), green (515 nm) and blue (456 nm) LEDs. A short-circuit current ( I sc ) of ∼3 µ A and an open-circuit voltage ( V oc ) of ∼−120 mV are observed under IR LED illumination. The work function data in literature along with the sign of V oc measurement is used to sketch the energy band diagram of the heterojunction. The temperature-dependent I sc properties of the junction, contrary to conventional photodetectors, show an initial rise and then a sharp transition from maximum (3.5 μ A) to almost zero near 337 K, corresponding to a metal–insulator phase transition, paving the way for photodetectors with temperature-tunable photoresponsivity." @default.
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- W3119354831 date "2021-02-05" @default.
- W3119354831 modified "2023-10-16" @default.
- W3119354831 title "Self-powered and temperature-tunable infrared-visible photodetector based on a VO<sub>2</sub>/Si heterojunction" @default.
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- W3119354831 doi "https://doi.org/10.1088/1361-6463/abdb0d" @default.
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