Chinese Optics Letters, Volume. 11, Issue s1, S10211(2013)
Preparation of broadband antireflective coating by sol-gel method
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.
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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
Category: Deposition and process control
Received: Dec. 27, 2012
Accepted: Jan. 18, 2013
Published Online: Jun. 14, 2013
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