Optical constants of anodic aluminum oxide films formed in oxalic acid solution
文献类型：期刊论文
| 作者 | Liu WM(刘维民)
|
| 刊名 | Thin Solid Films
 |
| 出版日期 | 2008 |
| 卷号 | 516页码:7689-7694 |
| 关键词 | Anodic aluminum oxide films (AAO) Optical constants Wemple–DiDomenico model Dispersion parameters |
| ISSN号 | 0040-6090 |
| 通讯作者 | 王成伟 |
| 中文摘要 | The anodic aluminum oxide (AAO) films with highly ordered nanopore arrays were prepared in oxalic acid solution under different anodizing voltage and time, its surface and cross section appearances were characterized by using field emission scanning electron microscopy, the transmission spectra with the interference fringes were measured at normal incidence over the wavelength range 200 to 2500 nm. Then the modified Swanepoel method was used for the determination of the optical constants and thickness of the free standing AAO films. The results indicate that the refractive index increases with the increase of anodizing voltage and the decrease of anodizing time, which is mainly due to the content of Al2O3 with octahedron increases in the AAO films. The dispersion of the refractive index is discussed in terms of the single-oscillator Wemple–DiDomenico model, and the energy dependence of the absorption coefficient can be described using the direct transition model proposed by Tauc. Likewise, the optical energy gap Eg is derived from Tauc's extrapolation, and Eg increases from 4.178 to 4.256 eV with the anodizing voltage, but is weakly dependent on anodizing time. All the results are self-consistent in the paper. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the Foundation of National Natural Science, China (Grant No. 10774121);the Foundation of Northwest Normal University, Gansu Province, China (Grant No. NWNU-KJCXGC-03-22);the Youth Teacher Foundation of Northwest Normal University, Gansu Province, China (Grant No. NWNU-QN-06-25) |
| 语种 | 英语 |
| WOS记录号 | WOS:000259727900068 |
| 公开日期 | 2013-03-28 |
| 源URL | [http://210.77.64.217/handle/362003/2706]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Liu WM. Optical constants of anodic aluminum oxide films formed in oxalic acid solution[J]. Thin Solid Films,2008,516:7689-7694. |
| APA | 刘维民.(2008).Optical constants of anodic aluminum oxide films formed in oxalic acid solution.Thin Solid Films,516,7689-7694. |
| MLA | 刘维民."Optical constants of anodic aluminum oxide films formed in oxalic acid solution".Thin Solid Films 516(2008):7689-7694. |
入库方式： OAI收割
来源：兰州化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。