草酸中多晶衬底阳极氧化继承的阳极氧化铝镶嵌结构。

Mosaic of Anodic Alumina Inherited from Anodizing of Polycrystalline Substrate in Oxalic Acid.

作者信息

Kushnir Sergey E, Kuznetsov Mikhail E, Roslyakov Ilya V, Lyskov Nikolay V, Napolskii Kirill S

机构信息

Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.

Department of Materials Science, Lomonosov Moscow State University, Moscow 119991, Russia.

出版信息

Nanomaterials (Basel). 2022 Dec 10;12(24):4406. doi: 10.3390/nano12244406.

DOI:10.3390/nano12244406

PMID:36558259

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9788389/

Abstract

The anodizing of aluminium under oscillating conditions is a versatile and reproducible method for the preparation of one-dimensional photonic crystals (PhCs). Many anodizing parameters have been optimised to improve the optical properties of anodic aluminium oxide (AAO) PhCs. However, the influence of the crystallographic orientation of an Al substrate on the characteristics of AAO PhCs has not been considered yet. Here, the effect of Al substrate crystallography on the properties of AAO PhCs is investigated. It is experimentally demonstrated that the cyclic anodizing of coarse-grained aluminium foils produces a mosaic of photonic crystals. The crystallographic orientation of Al grains affects the electrochemical oxidation rate of Al, the growth rate of AAO, and the wavelength position of the photonic band gap.

摘要

在振荡条件下对铝进行阳极氧化是制备一维光子晶体（PhC）的一种通用且可重复的方法。许多阳极氧化参数已得到优化，以改善阳极氧化铝（AAO）光子晶体的光学性能。然而，尚未考虑铝衬底的晶体取向对AAO光子晶体特性的影响。在此，研究了铝衬底晶体学对AAO光子晶体性能的影响。实验证明，粗晶铝箔的循环阳极氧化会产生光子晶体的镶嵌结构。铝晶粒的晶体取向会影响铝的电化学氧化速率、AAO的生长速率以及光子带隙的波长位置。