Synthesis, structural and optical characterization of ZnO crystals grown in the presence of silver |
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Authors: | J. Rodrigues M.R.N. SoaresR.G. Carvalho A.J.S. FernandesM.R. Correia T. MonteiroF.M. Costa |
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Affiliation: | Department of Physics and I3N, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal |
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Abstract: | Zinc oxide microcrystals grown at atmospheric pressure by the laser assisted flow deposition method were characterized by morphological, structural and optical techniques. A set of samples with 0, 0.8, 2.0, 3.0 and 5.0 mol% nominal AgNO3 content were studied in order to analyse the influence of silver amount on the near band edge recombination. A detailed study of the samples' photoluminescence evidence that at room temperature the free exciton recombination occurs at ~ 3.334 eV for crystals grown in the presence of silver instead of the broad peak observed at ~ 3.28 eV for the undoped ones. |
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Keywords: | Zinc oxide Microcrystals Silver Doping Photoluminescence Laser assisted flow deposition |
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