Highly c-axis oriented deposition of zinc oxide on an ITO surface modified by layer-by-layer method

被引:9
|
作者
Watanabe, Mitsuru [1 ]
Nakamura, Yuji [2 ]
Shinagawa, Tsutomu [1 ]
Watase, Seiji [1 ]
Tamai, Toshiyuki [1 ]
Nishioka, Noboru [2 ]
Matsukawa, Kimihiro [1 ]
机构
[1] Osaka Municipal Tech Res Inst, Osaka 5368553, Japan
[2] Osaka Electrocommun Univ, Neyagawa, Osaka 5728530, Japan
基金
日本学术振兴会;
关键词
Electrodeposition; Zinc oxide; Nanopillar; Layer-by-layer; Texture coefficient; SENSITIZED SOLAR-CELLS; LIGHT-EMITTING DIODE; ZNO NANOWIRE ARRAYS; LOW-TEMPERATURE ELECTRODEPOSITION; THIN-FILMS; EPITAXIAL ELECTRODEPOSITION; RECENT PROGRESS; NANOROD ARRAYS; GROWTH; NANOSTRUCTURES;
D O I
10.1016/j.electacta.2013.02.104
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The easy method to construct c-axis oriented zinc oxide (ZnO) layer directly attached onto a transparent conducting substrate was studied. On the assumption that anionic organic functional groups serves as a directing group for Zn2+ ion, poly(sodium p-styrenesulfonate) (PSSNa) was immobilized onto ITO surface by layer-by-layer (LbL) process, and ZnO was electrodeposited onto the modified ITO surface. Nucleation of ZnO crystals was induced by LbL treatment and the nucleated crystals were aligned toward <0 0 1>. The ZnO crystals gradually formed a film as the electrolysis progressed maintaining the crystal alignment, resulted in (0 0 1)-oriented ZnO continuous film. The obtained ZnO film was more transparent and uniform, and exhibited more intense photoluminescence at UV region than those deposited on a bare ITO. Also, the present method for the orientation selective nucleation of ZnO crystals revealed to be utilized as a seed layer for well aligned ZnO nanopillar array. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:237 / 242
页数:6
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