Microstructure evolution of zinc oxide films derived from dip-coating sol-gel technique: formation of nanorods through orientation attachment

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	Microstructure evolution of zinc oxide films derived from dip-coating sol-gel technique: formation of nanorods through orientation attachment
	N. Huang; C. Sun; M. W. Zhu; B. Zhang; J. Gong; X. Jiang
	2011
发表期刊	Nanotechnology
ISSN	0957-4484
卷号	22 期号:26
摘要	ZnO: Al thin films with Al incorporation of 0-20 at.% were deposited through the sol-gel technique. Such a film undergoes a significant microstructure development, from columnar to granular structures and then nanorod arrays with increasing Al content. The important role of Al incorporation level in the microstructure evolution was determined using scanning electron microscopy, x-ray photoelectron spectroscopy and transmission electron microscopy. At low Al level, the transition from columnar to granular grains can be attributed to the coarsening barrier resulting from the introduction of Al into the matrix. However, oriented structures of ZnO nanorod arrays are formed at a high Al level. TEM investigation reveals that a nanorod with smooth morphology at the top and rough morphology at the bottom has a single-crystalline wurtzite structure, which is the aggregation of nanoparticles of a few nanometers in size formed through the orientation attachment mechanism followed by epitaxial growth on the aggregated particles. Finally, the physical properties of the ZnO films with different degrees of Al concentration are discussed. Such detailed microstructure studies may aid the understanding of the doping effect process on the growth of a film, which is essential to altering its physical or chemical properties.
部门归属	[huang, nan; sun, chao; zhang, bin; gong, jun] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [zhu, mingwei] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [jiang, xin] univ siegen, inst mat engn, d-57076 siegen, germany.;sun, c (reprint author), chinese acad sci, inst met res, state key lab corros & protect, wenhua rd 72, shenyang 110016, peoples r china;csun@imr.ac.cn jiang@lot.mb.uni-siegen.de
关键词	Zno Thin-films Physical-properties Crystal-growth Transparent Deposition Morphology
URL	查看原文
WOS记录号	WOS:000290719500035
引用统计	被引频次：26[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30411
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	N. Huang,C. Sun,M. W. Zhu,et al. Microstructure evolution of zinc oxide films derived from dip-coating sol-gel technique: formation of nanorods through orientation attachment[J]. Nanotechnology,2011,22(26).
APA	N. Huang,C. Sun,M. W. Zhu,B. Zhang,J. Gong,&X. Jiang.(2011).Microstructure evolution of zinc oxide films derived from dip-coating sol-gel technique: formation of nanorods through orientation attachment.Nanotechnology,22(26).
MLA	N. Huang,et al."Microstructure evolution of zinc oxide films derived from dip-coating sol-gel technique: formation of nanorods through orientation attachment".Nanotechnology 22.26(2011).