多孔氧化铝膜的制备及其光学性质  

The Fabrication and Optical Property of Porous Alumina

作　　者：李莎[1] 叶永红[1] 王志兵[1] 石彦茂[2] 蔡称心[2] 

机构地区：[1]南京师范大学物理科学与技术学院江苏省光电技术重点实验室,江苏南京210097 [2]南京师范大学化学与环境科学学院,江苏南京210097

出　　处：《南京师大学报（自然科学版）》2007年第4期50-52,共3页Journal of Nanjing Normal University(Natural Science Edition)

基　　金：国家自然科学基金(90401024)资助项目.

摘　　要：提出了一种制备具有周期结构金属薄膜的新方法---阳极氧化法制备多孔氧化铝膜.以草酸为电解液,制备出了几种表面孔径不同的多孔氧化铝膜,并在其表面镀银制得样品.用场发射扫描电镜观察多孔氧化铝膜的表面形貌,并采用光谱仪测定了样品的透射光谱.研究发现,由于表面等离子激元波(surface plasmon polaritons,SPPs)的作用,在可见光波段观察到了透过率异常增强现象.Anodic alumina membranes as a new method of fabricating periodically perforated metal films is reported. Porous alumina substrates were prepared in oxalic acid electrolyte with different interpore distance, and silver films were deposited on these substrates as the samples. Field emission scanning electron microscope（FESEM） was used to observe the surface morphology, and optical spectroscopy was used to measure the transmission spectrum of samples. Due to the involvement of surface plasmon polaritons, the enhanced transmission in the visible regions was observed.

关 键 词：周期结构金属薄膜 多孔氧化铝膜 表面等离子激元波 透过率增强 

分 类 号：O614.3[理学—无机化学]