Study on the formation process of titania nanohole arrays

被引:17
作者
Hamaguchi, T [1 ]
Uno, M [1 ]
Kurosaki, K [1 ]
Yamanaka, S [1 ]
机构
[1] Osaka Univ, Grad Sch Engn, Dept Nucl Engn, Suita, Osaka 5650871, Japan
关键词
nanostructure; nanofabrication; chemical synthesis; thin films;
D O I
10.1016/j.jallcom.2004.05.019
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We try to clarify the formation mechanism of the titania nanohole array. In the process of synthesis of the titania nanohole array, two different reactions occur at once: one is the dissolution of the anodic alumina as a starting material and the other is the deposition of the titania powder. Since the initial dissolution rate of anodic alumina is faster than the initial deposition rate of titania, the sample weight first decreases. After the concentration of aluminum in the treatment solution became higher, the deposition rate of titania became faster than the dissolution rate of anodic alumina. During the formation process, the remaining anodic alumina formed the scaffolds. This mechanism could be applied to the formation process of other oxide nanohole array. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:265 / 269
页数:5
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