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Study on antireflection SiO2 coatings fabricated by layer-by-layer deposition

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Wuhan University Journal of Natural Sciences

Abstract

Multifunctional (poly(diallyldimethyl ammonium chloride)/ sodium poly(4-styrene sulfonate)) n ((PDDA/PSS) n ) thin films were fabricated by layer-by-layer assembled on the glass substrate. The monolayer silica nanoparticles were prepared on the (PDDA/PSS) n films. The SiO2-polyelectrolyte coatings exhibit antireflection properties with low refractive index (as low as 1.22). Interestingly, wavelengths of maximum transmittance could be well tailored by simply changing the particle size of SiO2. A maximum transmittance of 97.03% in the visible spectral range is achieved for the particle size of 100 nm SiO2 films. The coatings also show excellent mechanical stability and good adhesion to substrates. The easy availability of the raw materials and simplicity of the fabrication method for such films might make them be potentially useful for various applications.

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Correspondence to Pengfei Fang.

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Foundation item: Supported by the National Science Foundation of China (21174108) and the Fundamental Research Funds for the Central Universities (20102020201000017)

Biography: WANG Cong, male, Master candidate, research direction: advance functional materials.

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Wang, C., Hu, Q., Fang, P. et al. Study on antireflection SiO2 coatings fabricated by layer-by-layer deposition. Wuhan Univ. J. Nat. Sci. 18, 213–218 (2013). https://doi.org/10.1007/s11859-013-0917-9

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  • DOI: https://doi.org/10.1007/s11859-013-0917-9

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