The breakage of nanopore in AAO template

2016 Global Conference on Polymer and Composite Materials

材料科学;化学

Jia, X.R.^1 ; Wang, H.^1 ; Zhen, Y.^1

Department of Physics, Capital Normal University, Beijing Key Laboratory of Metamaterials and Devices, Key Laboratory of Terahertz Optoelectronics, Ministry of Education, Beijing Advanced Innovation Center for Imaging Technology, Beijing

100048, China^1

关键词: AAO template;    Bernoulli principle;    Constant voltage;    Migration rates;    Oxalic acid solution;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/137/1/012065/pdf
DOI  :  10.1088/1757-899X/137/1/012065

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In the present work, AAO template is fabricated in oxalic acid solution under a constant voltage by several steps. By the Bernoulli principle, the pressure on the wall of hole increases which lead to the breakage of nanopore as a result of the reducing effective migration rate of Al3+. The quantity of the breakage of nanopore rises with the increase of the concentration of Al3+. Further, nanopore is closed by oxide due to the decrease of effective migration rate of Al3+. Finally, a "nanoflower-like" shape can be observed in experiments.