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Opt Express. 2013 Feb 11;21(3):3492-500. doi: 10.1364/OE.21.003492.

Effect of the defect on photoluminescence property of Al-coated ZnO nanostructures.

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  • 1Department of Physics & State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China.


The room-temperature photoluminescence (PL) spectra of hydrothermal grown ZnO film and nanowires coated with Al are investigated, which exhibit much less UV emission enhancement ratio as against that of nanowires fabricated by thermal evaporation method. A model is suggested at last to interpret the experimental results considering the influence of the defect on the contact property between metal and ZnO, which is further evidenced by the weak PL enhancement ratio of thermal evaporation grown ZnO nanowires with H(2)O(2) treatment.

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