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期刊论文
Preparation and properties of scratch-resistant nano porous broadband ARsilica films derived by a two-step catalytic sol-gel process
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new method to strengthen nano porous broadband anti-reflectance (AR) silica films is described. Silicasols were made from TEOS with a base/acid two-step catalytic process. Properties of silica films deposited witha dip-coat method are characterized with AFM, SEM, spectrophotometer and abrasion test. Experimental resultsshow that the average reflectance ofa glass coated with the nano porous silica films is less than 1% in the visibleregion; and that the two-step catalysis obviously strengthens the films. Finally, the strengthening mechanism ofthe films is discussed.
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