Growth of fractal patterns in ZnO films doped with Fe

被引：6

作者：

Cui, M. L. ^{[1
,2
]}

Wu, X. M. ^{[1
,2
,4
]}

Zhuge, L. J. ^{[1
,3
]}

Meng, Y. D. ^{[4
]}

机构：

[1] Suzhou Univ, Dept Phys, Suzhou 215006, Peoples R China

[2] Suzhou Univ, Key Lab Thin Films Jiangsu, Suzhou 215006, Peoples R China

[3] Suzhou Univ, Anal & Testing Ctr, Suzhou 215006, Peoples R China

[4] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

来源：

VACUUM | 2008年 / 82卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Fe-doped ZnO film; fractal; tension; magnetic;

D O I：

10.1016/j.vacuum.2007.09.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnO films both undoped and doped with Fe were deposited on Si substrates using rf-magnetron sputtering. The results showed that fractal features were clearly exhibited in the ZnO film doped with Fe. It is proposed that the fractal aggregates were the result of cluster diffusion-limited aggregation (CDLA) of magnetic particles on the surface of the film. The fractal dimension of a main branch (D = 1.47) was smaller than that expected by the CDLA model (D = 1.72). In this paper the growth mechanism of the observed fractal aggregates is discussed in terms of the magnetism of FeO, nanoparticle aggregation and surface tension changes. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：613 / 616

页数：4

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