期刊
APPLIED PHYSICS LETTERS
卷 81, 期 16, 页码 3046-3048出版社
AMER INST PHYSICS
DOI: 10.1063/1.1512829
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We report on catalyst-driven molecular beam epitaxy of ZnO nanorods. The process is site specific, as single crystal ZnO nanorod growth is realized via nucleation on Ag films or islands that are deposited on a SiO2-terminated Si substrate surface. Growth occurs at substrate temperatures on the order of 300-500 degreesC. The nanorods are uniform cylinders, exhibiting diameters of 15-40 nm and lengths in excess of 1 mum. With this approach, nanorod placement can be predefined via location of metal catalyst islands or particles. This, coupled with the relatively low growth temperatures needed, suggests that ZnO nanorods could be integrated on device platforms for numerous applications, including chemical sensors and nanoelectronics. (C) 2002 American Institute of Physics.
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