光电子学
阳极氧化铝
纳米结构
化学工程
纳米线
基质(水族馆)
纳米颗粒
薄膜
纳米孔
氧化物
纳米孔
作者
Qi Hao,Hao Huang,Xingce Fan,Xiangyu Hou,Yin Yin,Wan Li,Lifang Si,Haiyan Nan,Huaiyu Wang,Yongfeng Mei,Teng Qiu,Paul K. Chu
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2017-01-31
卷期号:28 (10): 105301-
被引量:45
标识
DOI:10.1088/1361-6528/aa596d
摘要
Ultra-thin anodic aluminum oxide (AAO) membranes are efficient templates for the fabrication of patterned nanostructures. Herein, a three-step etching method to control the morphology of AAO is described. The morphological evolution of the AAO during phosphoric acid etching is systematically investigated and a nonlinear growth mechanism during unsteady-state anodization is revealed. The thickness of the AAO can be quantitatively controlled from ∼100 nm to several micrometers while maintaining the tunablity of the pore diameter. The AAO membranes are robust and readily transferable to different types of substrates to prepare patterned plasmonic nanoarrays such as nanoislands, nanoclusters, ultra-small nanodots, and core-satellite superstructures. The localized surface plasmon resonance from these nanostructures can be easily tuned by adjusting the morphology of the AAO template. The custom AAO template provides a platform for the fabrication of low-cost and large-scale functional nanoarrays suitable for fundamental studies as well as applications including biochemical sensing, imaging, photocatalysis, and photovoltaics.
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