首页 | 本学科首页   官方微博 | 高级检索  
     检索      

多孔阳极氧化铝薄膜光学常数的确定
引用本文:王成伟,王建,李燕,刘维民,徐洮,孙小伟,力虎林.多孔阳极氧化铝薄膜光学常数的确定[J].物理学报,2005,54(1):439-444.
作者姓名:王成伟  王建  李燕  刘维民  徐洮  孙小伟  力虎林
作者单位:(1)兰州大学化学化工学院,兰州 730000; (2)西北师范大学物理与电子工程学院,兰州 730070; (3)中国科学院兰州化学物理研究所固体润滑国家重点实验室,兰州 730000
基金项目:甘肃省自然科学基金(批准号:ZS021-A25-029-C)和西北师范大学二期科技创新工程项目(批 准号:KJCXGC-214)资助的课题.
摘    要:根据多孔阳极氧化铝(AAO)薄膜的实验透射谱(200—2500nm),采用极值包络线算法确定其光学常数,并由此较精确地计算出AAO薄膜样品在该波段的光学常数.结果表明,多孔氧化铝薄膜表现出直接带隙(能隙约4.5eV)半导体的光学特性,且其光学常数与制样中的重要工艺参数阳极氧化电压有显著的相关性,即随阳极氧化电压的增加,AAO薄膜的厚度、折射率和光学能隙变大,消光系数减小.同时,计算得到的薄膜厚度与实测值相吻合,则说明计算结果和实验值是自洽的. 关键词: 薄膜光学 光学常数 多孔阳极氧化铝 阳极氧化电压

关 键 词:薄膜光学  光学常数  多孔阳极氧化铝  阳极氧化电压
收稿时间:4/7/2004 12:00:00 AM

Determination of the optical constants of porous anodic aluminum oxide films
Wang Cheng-Wei,Wang Jian,Li Yan,Liu Wei-Min,Xu Tao,Sun Xiao-Wei and Li Hu-Lin.Determination of the optical constants of porous anodic aluminum oxide films[J].Acta Physica Sinica,2005,54(1):439-444.
Authors:Wang Cheng-Wei  Wang Jian  Li Yan  Liu Wei-Min  Xu Tao  Sun Xiao-Wei and Li Hu-Lin
Abstract:A simple method was established based on the envelope curves of the optical transmission spectrum over the wavelength range of 200 to 2500 nm at normal incidence,which was used for the accurate determination of the optical constants of the anodic aluminum oxide(AAO) films. The results showed that the AAO films exhibited the optical features of a semiconductor with direct band gap of about 4.5 eV,and the optical constants of the AAO films depended strongly on the anodic oxidation voltage,an important technologic parameter for preparation of AAO films. With the increase of the anodic oxidation voltage,the optical constants including the refractive index,thickness and optical band gap of AAO films increased,and the extinction coefficient decreased. Meanwhile,the fact that the calculated values of the thickness of AAO films were in satisfactory agreement with the values of measurement illuminated that the results were well self-consistent with the experiment.
Keywords:film optics  optical constants  porous anodic aluminum oxide (AAO)  anodic oxidation voltage
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《物理学报》浏览原始摘要信息
点击此处可从《物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号