Xu Rui, Zeng Zhiqiang, Lei Yong
Fachgebiet Angewandte Nanophysik, Institut für Physik & IMN MacroNano, Technische Universität Ilmenau, Ilmenau, 98693, Germany.
Nat Commun. 2022 May 4;13(1):2435. doi: 10.1038/s41467-022-30137-6.
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.
在尺寸、形状、空间构型和多重组合方面实现明确的纳米结构化是获得纳米结构阵列独特性质的可行概念，然而用传统技术满足如此广泛而严格的要求具有挑战性。在此，我们报告了可设计的阳极氧化铝模板，通过在模板内实现平面内和平面外形状、尺寸、空间构型以及孔组合方面明确的孔特征来应对这一挑战。模板孔的结构可设计性源于在不同阳极氧化电压下设计不相等的铝阳极氧化速率，并且进一步依赖于指导孔多样化的系统蓝图。从可设计的模板出发，我们实现了一系列纳米结构，这些纳米结构相对于其模板对应物具有同等的结构可控性。基于此类纳米结构的概念验证应用展示了增强的性能。鉴于广泛的选择性和高可控性，可设计模板将为明确的纳米结构化提供一个有用的平台。
