کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1669549 | 1008885 | 2009 | 4 صفحه PDF | دانلود رایگان |
SnO2 nanowires can be synthesized on alumina substrates and formed into an ultraviolet (UV) photodetector. The photoelectric current of the SnO2 nanowires exhibited a rapid photo-response as a UV lamp was switched on and off. The ratio of UV-exposed current to dark current has been investigated. The SnO2 nanowires were synthesized by a vapor–liquid–solid process at a temperature of 900 °C. It was found that the nanowires were around 70–100 nm in diameter and several hundred microns in length. High-resolution transmission electron microscopy (HRTEM) image indicated that the nanowires grew along the [200] axis as a single crystallinity. Cathodoluminescence (CL), thin-film X-ray diffractometry, and X-ray photoelectron spectroscopy (XPS) were used to characterize the as-synthesized nanowires.
Journal: Thin Solid Films - Volume 517, Issue 14, 29 May 2009, Pages 3870–3873