Preparation and properties of scratch-resistant nano porous broadband AR silica films derived by a two-step catalytic sol-gel process

摘要

A new method to strengthen nano porous broadband antio-reflectance (AR) silica films is described. Silica sols were made from TEOS with a base/acid two-step catalytic process. properties of silica films deposited with a dip-coat method are characterized with AFM, SEM, spectrophotometer and abrasion test. Experimental results show that the average reflectance of a glass coated with the nano porous silica films is less than 1