彩色多孔氧化铝薄膜的制备和光学特性  

Preparation and Optical Properties of Colorized Porous Alumina Thin Films

作　　者：杨淑敏[1] 李海涛[1] 顾建军[1] 韩伟[1] 杨巍[1] 岂云开[1] 

机构地区：[1]河北民族师范学院物理系,河北承德067000

出　　处：《材料工程》2015年第4期30-36,共7页Journal of Materials Engineering

基　　金：河北省自然科学基金资助项目(A2012101001);河北省科技支撑计划资助项目(132176278);河北省教育厅自然科学研究青年基金资助项目(QN20132013;QN2014340);河北省承德市财政扶持资助项目(CZ2012007;CZ2013002);河北民族师范学院科研资助项目(201301)

摘　　要：以草酸为电解液,通过调节电解槽的倾角,使阴极和阳极成一定夹角,采用一次阳极氧化工艺在同一片铝箔上制备具有不同结构的氧化铝薄膜,并对薄膜的微观结构和光学特性进行研究。结果表明:在同一片铝箔上形成了孔洞不同的两个区域。控制氧化铝薄膜的厚度,在可见光范围内,氧化铝薄膜显示出两种不同的结构色,且不同结构色所占区域的面积比可通过调节电解槽的倾角来调控。改变氧化时间,可以改变氧化铝薄膜的厚度,进而调控不同区域薄膜结构色的变化。偏振测试结果显示氧化铝薄膜的反射光是线偏振光。Alumina thin films with different structures were fabricated by one-step anodic oxidation of process on the same aluminum using oxalic acid as electrolyte,keeping a certain angle between the cathode and the anode through adjusting angle of electrolyzer.The microstructure and optical properties of thin films were studied.The results show that two areas with different holes on the same piece of aluminum foil are formed.In the range of visible light,alumina films reveal two different structural colors through controlling the thickness of films.The area ratio of different structural colors is controlled through adjusting the angle of electrolyzer.The thicknesses of the alumina thin films can be adjusted by changing the oxidation time,and then the change of structural colors at different zones can be adjusted.The results of polarization test indicate lights reflected by alumina films are linearly polarized light.

关 键 词：阳极氧化铝 多孔材料 光学特性 偏振 

分 类 号：O646.6[理学—物理化学] O439[理学—化学]