Abstract

Sol-gel process of TEOS in the presence of amphiphilic polyethylene oxide (AEO) was investigated by the particle size distribution (SDP) and transmission electron microscopy (TEM). The results indicated that AEO influenced seriously both hydrolysis and polycondensation of TEOS, leading to the formation of the network in short order. With such kind of SiO2 sols, Two-layer SiO2 anti-reflective (AR) coatings were prepared by spin-coating, which showed high laser damage threshold.

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