Abstract Here, we systematically investigate optical behaviors of ruthenium (Ru)-coated nanoporous anodic aluminum oxide (AAO) nanoarchitectures in the visible and near-Infrared (NIR) regions, where they are fabricated by an atomic layer deposition (ALD) process. Depending on the Ru thickness and the AAO dimensions, the Ru nanoarchitectures could be completely changed (tubular-type or wire-type Ru nanostructures), and the corresponding optical properties are critically affected. Brilliant structural colors are found from the Ru-coated AAO nanostructures, in which the color display covers the full visible range. Beyond the visible region, we also examine the optical behaviors of Ru-coated AAO nanostructures in the NIR region.

中文翻译：

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原子层沉积镀钌阳极氧化铝的结构颜色和近红外可调性

摘要 在这里，我们系统地研究了钌 (Ru) 涂层纳米多孔阳极氧化铝 (AAO) 纳米结构在可见光和近红外 (NIR) 区域的光学行为，它们是通过原子层沉积 (ALD) 工艺制造的。根据 Ru 厚度和 AAO 尺寸，Ru 纳米结构可以完全改变（管状或线状 Ru 纳米结构），并且相应的光学性质受到严重影响。从 Ru 涂层的 AAO 纳米结构中发现了明亮的结构颜色，其中彩色显示覆盖了整个可见范围。除了可见光区域，我们还检查了 Ru 涂层的 AAO 纳米结构在 NIR 区域的光学行为。