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Performance improvement of hybrid-catalyzed SiO2 sol-gel film

The silica antireflective film doped PEG (polyethylene glycol) and siloxane into aged base-catalyzed colloidal SiO2 suspension has been formed. It is illustrated that its laser induced damage threshold and scratch-resistant capability have been improved, and the film can be also used for a longer time in practical applications. By means of investigation of the surface structure, transmission spectrum and laser damage threshold of the film. The role of the siloxane is analyzed.