Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 356, Issue 1-3, Pages 145-149Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2010.01.003
Keywords
Antireflection; Silica nanoparticles; Surface nanoparticle density; Electrostatic attraction
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Funding
- National Science Council of the Republic of China [NSC 97-2218-E-224-001]
- Ministry of Economic Affairs of Taiwan [97-EC-17-A-08-S1-015]
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Nanostructured antireflective surfaces were fabricated by the deposition of monodispersed silica nanoparticles on a glass substrate by electrostatic attraction between charged colloidal particles and charged polyelectrolyte multilayers. The effects of particle size and surface nanoparticle density on the antireflective properties of the nanostructured surfaces were investigated by the analysis of their reflection/transmission spectra and examination of their surface morphology. It was found that the nanostructured surfaces with particles of similar to 120 nm in diameter yielded the most suitable performance for antireflection with respect to the visible-light region. The nanoparticle coatings revealed reflective properties similar to homogeneous porous layers. However, in comparing the simulation analysis to the experimental results, it was found inappropriate that an NP coating is entirely regarded as a homogenous porous layer. (C) 2010 Elsevier B.V. All rights reserved.
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