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Structural tuning of photoluminescence in nanoporous anodic alumina by hard anodization in oxalic and malonic acids

机译:草酸和丙二酸中的硬质阳极氧化对纳米多孔阳极氧化铝中的光致发光进行结构调整

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摘要

We report on an exhaustive and systematic study about the photoluminescent properties of nanoporous anodic alumina membranes fabricated by the one-step anodization process under hard conditions in oxalic and malonic acids. This optical property is analysed as a function of several parameters (i.e. hard anodization voltage, pore diameter, membrane thickness, annealing temperature and acid electrolyte). This analysis makes it possible to tune the photoluminescent behaviour at will simply by modifying the structural characteristics of these membranes. This structural tuning ability is of special interest in such fields as optoelectronics, in which an accurate design of the basic nanostructures (e.g. microcavities, resonators, filters, supports, etc.) yields the control over their optical properties and, thus, upon the performance of the nanodevices derived from them (biosensors, interferometers, selective filters, etc.)
机译:我们报告了关于在草酸和丙二酸的坚硬条件下通过一步阳极氧化工艺制备的纳米多孔阳极氧化铝膜的光致发光特性的详尽而系统的研究。根据几个参数(即硬质阳极氧化电压,孔径,膜厚度,退火温度和酸性电解质)来分析该光学性质。该分析使得可以简单地通过改变这些膜的结构特性来随意调整光致发光行为。这种结构调整能力在诸如光电学等领域特别受关注,在该领域中,基本纳米结构(例如微腔,谐振器,滤光片,支撑件等)的精确设计可控制其光学特性,从而控制性能衍生自它们的纳米器件的数量(生物传感器,干涉仪,选择性滤波器等)

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