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Observation of the First Excited State of A-Exciton in ZnO Nanocombs

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Abstract:

High-quality ZnO nanocombs were synthesized on Si substrates coated with Au films by evaporating ZnO powders with a high yield. The morphology of the ZnO nanocombs was characterized by scanning electronic microscopy. In order to study the dynamic process of near-band edge emission, the temperature-dependent photoluminescence spectra were measured. The first excited state emission of A-free exciton centered at 3.403 eV was observed at 87 K.

Keywords: FXAN=2; NANOCOMBS; PHOTOLUMINESCENCE; ZNO

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2010.2152

Publication date: March 1, 2010

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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