Journal
APPLIED PHYSICS LETTERS
Volume 108, Issue 26, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4954758
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Funding
- U.S. Department of Energy, Office of Science, Basic Energy Sciences [SC0012670]
- National Basic Research Program of China [2013CB932900, 2011CB922100]
- NSFC [61205057, 61204050]
- Educational Commission of Zhejiang Province of China [Y201329791]
- China Scholarship Council
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Ultraviolet electroluminescence from Schottky type LED device is demonstrated. The device prototype is based on Schottky junctions formed between Au and the top ends of ZnO nanowire arrays. Rectifying current-voltage characteristics are observed, and three different charge transport mechanisms are discussed in detail. Excitonic electroluminescence at around 380 nm is detected at high forward bias and the linear relationship between intensity and current suggests a LED device performance. The observation of LED signals from the simple Schottky structure provides a potential supplement to the category of ultraviolet LED devices. Published by AIP Publishing.
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