疏水SiO_2宽频增透膜的制备与研究  

Preparation of hydrophobic and broadband antireflective silica film

作　　者：郑威[1] 姜洪义[1] 海鸥[1] 李明[1] 徐东[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,湖北武汉430070

出　　处：《光学仪器》2016年第5期445-449,共5页Optical Instruments

基　　金：佛山市科技发展基金(03040041)

摘　　要：采用溶胶-凝胶浸渍提拉工艺在玻璃表面制备了双层增透膜,该薄膜由折射率分别为1. 12和1. 3 3 的两层膜构成.薄膜在380-1100nm 和1 100-2500nm 范围内平均透过率较空白玻璃分别提高了 7. 6 8 % 和4. 3 9 % .薄膜接触角大约141°,且表层膜在2 个月内能保持较高的疏水效果.双层增透膜制备方法简单,在宽光谱耐环境减反射领域有一定的应用潜力.The two-layer anti-reflective film was prepared on the surface of glass substrate via sol-gel dip-coating process.The coating was composed of two layer whose refractive index were 1.12 and 1.33.The transmittance of the film in the range of 380-1 100 nm and 1 100-2 500 nm was increased by 7.68%and 4.39%comparing with the glass substrate.The contact angle of the film was about 141°,and the surface layer maintained a good hydrophobic effect for two month.The film was prepared by a simple method.It has potential applications in the field of broadband anti-reflective film with environmental resistance.

关 键 词：宽频 疏水 溶胶-凝胶 增透膜 

分 类 号：O484[理学—固体物理]