Abstract
A simple and controllable method has been developed to synthesize well-aligned ZnO nanowire arrays on silicon and glass substrates in aqueous solution. A thin ZnO seed-layer coated with colloidal ZnO nanocrystals was introduced to control the density and orientation of ZnO nanowires. X-ray diffraction (XRD) and scanning electron microscopy (SEM) result show the high dense and well-aligned character of ZnO nanowires. The photoluminescence (PL) reveals the high crystal quality of the nanowires. It was found that the ZnO seed-layer can effect the size distribution, density and crystal structure of the nanowires. The growth mechanism of ZnO nanowires was also discussed.
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The authors are grateful for the financial support from Major Research Plan of National Natural Science Foundation of China (Grant No. 90406008) and National Major Fundamental Project: Nanomaterials and Nanostructures (Grant No. 2005CB623603).
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Wang, M., Ye, CH., Zhang, Y. et al. Seed-layer controlled synthesis of well-aligned ZnO nanowire arrays via a low temperature aqueous solution method. J Mater Sci: Mater Electron 19, 211–216 (2008). https://doi.org/10.1007/s10854-007-9319-0
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DOI: https://doi.org/10.1007/s10854-007-9319-0