Carboxylic Acids and Esters as Scaffold for Cavities in Porous Single Layer Anti-Reflective Coatings of Silica-Titania with Excellent Optical and Mechanical Properties

Elisabete H. S. de C. Menezes¹, Peter König², Mohammad Hussein Jilavi², Peter William de Oliveira², Severino Alves Júnior¹

¹Department of Fundamental Chemistry, Federal University of Pernambuco, Recife, Brazil.
²INM Leibniz-Institute for New Materials, Saarbrücken, Germany.

DOI: 10.4236/msa.2014.511078                

Abstract

Anti-reflective (AR) single layer of silica-titania (SiO₂-TiO₂) coatings were obtained from sols containing pyromellitic dianhydride (PMDA) derivatives and Ti and Si precursors on glass substrate by dip-coating method. The coatings showed very high optical quality and the transmission was improved to up to 98.5%. Furthermore, the coatings also presented good mechanical stability.

Keywords

Anti-Reflective Coating, Pyromellitic Dianhydride, Silica, Titania, SiO₂, TiO₂

Conflicts of Interest

The authors declare no conflicts of interest.

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