請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/43910
標題: Three-Step Growth of Well-Aligned ZnO Nanotube Arrays by Self-Catalyzed Metalorganic Chemical Vapor Deposition Method
作者: Wu, C.C.
洪瑞華
Wuu, D.S.
Lin, P.R.
Chen, T.N.
Horng, R.H.
武東星
關鍵字: free thermal evaporation
optical-properties
nanostructures
substrate
si
fabrication
nanorods
route
gan
期刊/報告no:: Crystal Growth & Design, Volume 9, Issue 10, Page(s) 4555-4561.
摘要: We have successfully synthesized vertically aligned ZnO nanotube arrays by metalorganic chemical vapor deposition. Since no metal catalysts are used in this work, the growth process of ZnO nanotube arrays does not follow a vapor-liquid-solid mechanism but a self-catalyzed growth mechanism. X-ray diffraction results show that the nanotubes have ZnO hexagonal wurizite structures and only the ZnO (0002) peak can be seen. The rocking curve also shows a full width at half-maximum value of similar to 1625 arc second. A 6-fold symmetry in phi-scan data is also observed, indicating in-plane alignment of ZnO nanotube arrays. Room temperature photoluminescence results present a high optical quality and nearly defect-free crystal structure of ZnO nanotube at-rays. Moreover, the high near-band edge emission to deep level emission intensity ratio (I(NBE)/I(DLE)) of 2050 is obtained.
URI: http://hdl.handle.net/11455/43910
ISSN: 1528-7483
文章連結: http://dx.doi.org/10.1021/cg900557n
顯示於類別:材料科學與工程學系

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