期刊
OPTICAL MATERIALS
卷 31, 期 6, 页码 860-864出版社
ELSEVIER
DOI: 10.1016/j.optmat.2008.09.008
关键词
Nanoporous alumina; Self-ordering process; X-ray diffraction; Transmission spectra
资金
- Spanish Commission of Science and Technology (MEC) [TEC2006-06531]
- Consolider HOPE [CSD 2007 - 00007]
- Spanish Ministerio de Ciencia y Tecnologia.
We report on the structural and optical properties of self-ordered nanoporous anodic alumina (NAA) films annealed at different temperatures. The morphology of NAA films is examined by scanning electron microscopy (SEM). The results show that the porous structure have hexagonally ordered arrays of nanopores with interpore distance in the range of 90-100 nm and pore size between 30 and 40 nm. The structural properties studied by X-ray diffraction (XRD) show out that the nanoporous alumina experiences a transition from the amorphous phase to gamma and alpha phase when annealed from 800 to 1200 degrees C. The optical transmission spectra of the annealed NAA films with different thicknesses (9, 24 and 45 mu m) are measured in the wavelength range of 300-1000 nm. Numerical simulations based on an optical model of the films show a good agreement with the measurements. The refractive index (n) and the extinction coefficient (k) are determined for each annealed temperature. (C) 2008 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据