Well-defined nanostructuring with designable anodic aluminum oxide template

Rui Xu, Zhiqiang Zeng and Yong Lei ()
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Rui Xu: Technische Universität Ilmenau
Zhiqiang Zeng: Technische Universität Ilmenau
Yong Lei: Technische Universität Ilmenau

Nature Communications, 2022, vol. 13, issue 1, 1-11

Abstract: Abstract Well-defined nanostructuring over size, shape, spatial configuration, and multi-combination is a feasible concept to reach unique properties of nanostructure arrays, while satisfying such broad and stringent requirements with conventional techniques is challenging. Here, we report designable anodic aluminium oxide templates to address this challenge by achieving well-defined pore features within templates in terms of in-plane and out-of-plane shape, size, spatial configuration, and pore combination. The structural designability of template pores arises from designing of unequal aluminium anodization rates at different anodization voltages, and further relies on a systematic blueprint guiding pore diversification. Starting from the designable templates, we realize a series of nanostructures that inherit equal structural controllability relative to their template counterparts. Proof-of-concept applications based on such nanostructures demonstrate boosted performance. In light of the broad selectivity and high controllability, designable templates will provide a useful platform for well-defined nanostructuring.

Date: 2022
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DOI: 10.1038/s41467-022-30137-6

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