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Antireflective Optical Properties of Colloidal Subwavelength Nanostructured Surfaces

Published online by Cambridge University Press:  01 February 2011

Bo-Tau Liu  and
Sheng-Jie Tang
Bo-Tau Liu
Affiliation:
liubo@yuntech.edu.tw, National Yunlin University of Science and Technology, Department of Chemical and Materials Engineering, Douliou, Taiwan, Province of China
Sheng-Jie Tang
Affiliation:
g9715739@yuntech.edu.tw, National Yunlin University of Science and Technology, Department of Chemical and Materials Engineering, Douliou, Taiwan, Province of China
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Abstract

Colloidal subwavelength nanostructured surfaces were fabricated by the deposition of uniform silica nanoparticles on a glass substrate by means of electrostatic attraction between charged colloidal particles and charged polyelectrolyte multilayers. The effects of surface morphology via the variation of nanoparticles on the antireflective properties of the nanostructured surfaces were investigated by the analysis of the reflection spectra and the SEM images. The Maxwell's equations were solved by a rigorous coupled-wave analysis (RCWA) to evaluate the experimental results. It was found that the reflective properties revealed by the simulation analysis were similar to the experimental results. The nanostructured surfaces with particles of ~120 nm in diameter yielded the most suitable performance for antireflection with respect to the visible-light region. In addition, the nanostructured surfaces showed the good anti-scratch when the nanoparticles were bound by polyethoxysiloxane.

Keywords

optical propertiescolloidnanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1256: Symposium N – Functional Oxide Nanostructures and Heterostructures , 2010 , 1256-N11-22
Copyright
Copyright © Materials Research Society 2010

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