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. © 2009 Elsevier B.V. All rights reserved.
CITATION STYLE
Wu, J. M., & Kuo, C. H. (2009). Ultraviolet photodetectors made from SnO2 nanowires. Thin Solid Films, 517(14), 3870–3873. https://doi.org/10.1016/j.tsf.2009.01.120
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