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- W4384834931 abstract "TiO 2 -based devices are known for their responsive behavior to environmental conditions. In this study, we report the fabrication of a locally N-doped TiO 2 / p -Si (100) heterojunction UV-vis photodetector, achieved through a series of processes including magnetron sputtering, high-temperature annealing, hydrothermal synthesis, and thermal evaporation. Due to surface oxygen adsorption and partial nitrogen doping in TiO 2 , the photocurrent of the device was found to be higher in vacuum than in air at low voltage, and lower in vacuum than in air at higher voltage. Moreover, the photocurrent was more likely to reach saturation under vacuum at low voltage. Under UV light illumination (380 nm), the voltage applied to the device to reach the saturation currents in vacuum and air were approximately −1 V and −1.5 V, respectively, and these values increased slightly when illuminated by visible light (480 nm). The study of the impact of oxygen adsorption and partial N doping in TiO 2 on the hindrance and multiplier effects of carrier movement in photodetectors can be beneficial for the development and application of wearable, biosensing, and vacuum sensing devices." @default.
- W4384834931 created "2023-07-21" @default.
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- W4384834931 date "2023-05-01" @default.
- W4384834931 modified "2023-09-23" @default.
- W4384834931 title "Influence of Oxygen Adsorption on Local N-Doped TiO<sub>2</sub>/<i>p</i>-Si (100) Heterojunction UV-Visible Photodetector" @default.
- W4384834931 doi "https://doi.org/10.1166/sam.2023.4467" @default.
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