胶体晶体的垂直沉积法制备及其光学特性表征  

Fabrication of Colloidal Photonic Crystal by Vertical Deposition Method and Optical Properties

作　　者：郭文华[1,2] 王鸣[1] 喻平[1] 刘青[1] 闫海涛[1] 

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]常熟理工学院物理与电子工程学院,江苏常熟215500

出　　处：《南京师大学报（自然科学版）》2009年第4期52-54,58,共4页Journal of Nanjing Normal University(Natural Science Edition)

基　　金：江苏省科技支撑计划(工业部分)(BE2008138)资助项目

摘　　要：通过控制溶剂蒸发温度和液体表面下降的速度,用垂直沉积法快速地制备出完整的二氧化硅胶体光子晶体.用扫描电子显微镜(SEM)确定了样品的面心立方结构,并通过紫外-可见光分光光度计测试透射光谱研究了其光子带隙特性,为利用模板技术制备具有完全带隙的有序孔结构提供理想模板.High-quality silica colloidal photonic crystals were fabricated quickly from aqueous colloidal solutions by a vertical deposition method at certain temperature and liquid surface dropping velocities. The structure of sample was shown to be face-centered-cubic （fcc） by scanning electron microscopy （SEM） and the optical properties of photonic band-gap are observed by measuring their transmission spectra at normal incidence using UV-near-IR spectrometer. The colloidal photonic crystals provide a relatively ideal template for the creation of three-dimensionally ordered porous structures with a full photonic band gap through templating technique.

关 键 词：胶体光子晶体 带隙 垂直沉积法 SIO2 微球 

分 类 号：O43[机械工程—光学工程] TB3[理学—光学]