Fabrication of the selective-growth ZnO nanorods with a hole-array pattern on a p-type GaN:Mg layer through a chemical bath deposition process |
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Authors: | Ming-Shiou Lin Shou-Yi Chang |
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Affiliation: | Department of Materials Science and Engineering, National Chung Hsing University, Taichung, 402, Taiwan, ROC |
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Abstract: | ZnO nanorod arrays were effectively selective-grown on a p-type GaN:Mg layer through chemical bath deposition (CBD) at a low temperature hydrothermal synthesis (85 °C) with a ZnO seed layer. The 5 μm-diameter hole-array patterns of the ZnO seed layer were grown on a p-type GaN:Mg layer in aqueous solution with a mercury lamp illumination. The diameter and the height of ZnO nanorods were measured as the values of 500 nm and 3 μm, respectively. The growth orientation, surface morphology, and aspect ratio of the ZnO nanorods can be controlled and formed on the hole-array patterned ZnO seed layer. The peak wavelength of the photoluminescence spectrum was measured at 384 nm. |
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Keywords: | GaN Light-emitting diodes (LED) ZnO nanorods (ZNR) Chemical bath deposition (CBD) |
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