Abstract
AbstractThe optical properties of ZnO nanowires are strongly influenced by surface effects. For diameters smaller than 200 nm, a surface exciton recombination band is observed. We report on the recombination dynamics of this emission band using low temperature and time resolved photoluminescence spectroscopy. We find a biexponential decay with different decay constants for different emission wavelengths on the band. We present a model to explain the biexponential decay characteristics and report on possibilities to experimentally enhance the relative intensity of the surface exciton emission by embedding the ZnO nanowires into polymer matrices. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Published Version
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