A study of ultrasonic spray pyrolysis deposited rutile-TiO2-based metal-semiconductor-metal ultraviolet photodetector
Materials Science in Semiconductor Processing(2017)
摘要
This work uses ultrasonic spray pyrolysis deposition to grow the TiO2 film on a Si substrate. The TiO2 film was annealed at 800°C for 2h to form rutile phase. X-ray diffraction, Raman spectrum, X-ray photoelectron spectroscopy were used to characterized rutile phase TiO2. The optical characteristics like refractive index, extinction coefficient and absorption coefficient were measured. The rutile TiO2-based metal-semiconductor-metal ultraviolet photodetector was fabricated and investigated, including current-voltage characteristic, photoresponsivity, external quantum efficiency, response time, noise equivalent power, and detectivity.
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关键词
Metal-semiconductor-metal (MSM),Photodetector,Rutile,Titanium dioxide (TiO2),Ultraviolet
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