Chinese Optics Letters, 2013, 11 (s1): S10211, Published Online: Jun. 14, 2013
Preparation of broadband antireflective coating by sol-gel method Download: 587次
310.1210 Antireflection coatings 310.6860 Thin films, optical properties 240.0310 Thin films 160.6060 Solgel
Abstract
A sol-gel method for the preparation of silica coating that varied in refractive index is developed. Silicon dioxide sol is obtained by hydrolysis and co-condensation reactions occurred in acid-catalyzed system. Surface morphology, refractive index, and transmission spectrum of the samples are studied. The results of transmission spectra of single-sided coatings show that the average transmittance of the samples increases about 4% compared with the uncoated one in the spectra range from 400 to 1 200 nm in the case of vertical incidence. For the double-sided coating the maximum transmittance is 99% at the wavelength of 840 nm.
Fengjuan Liu, Shu Zhou, Weiwei Dong, Xiaodong Fang. Preparation of broadband antireflective coating by sol-gel method[J]. Chinese Optics Letters, 2013, 11(s1): S10211.