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Proceedings Paper

Controlled deposition of photonic polystyrene-nanosphere films
Author(s): A. Kuttesch; C. Farcau; Z. Neda; S. Astilean
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Paper Abstract

The objective of this study is to develop a procedure for controlling the deposition of colloidal crystal coatings from nanoparticle suspensions. We experimentally deposited polystyrene nanospheres on glass plates by dragging a small volume of liquid over the substrates. The mechanism governing the deposition is convective assembly. It has been observed that the number of deposited nanosphere layers can be influenced by the deposition speed and the nanosphere volume fraction, as predicted by theory. Crystal coatings of a few square centimeters were deposited in minutes from suspensions of 5 - 20 μL. Our computer simulations of the phenomena generated structures similar to those from experimental films, proving the validity of the model elaborated for the assembly process.

Paper Details

Date Published: 1 August 2007
PDF: 8 pages
Proc. SPIE 6785, ROMOPTO 2006: Eighth Conference on Optics, 67850O (1 August 2007); doi: 10.1117/12.756841
Show Author Affiliations
A. Kuttesch, Babes-Bolyai Univ. (Romania)
C. Farcau, Babes-Bolyai Univ. (Romania)
Z. Neda, Babes-Bolyai Univ. (Romania)
S. Astilean, Babes-Bolyai Univ. (Romania)

Published in SPIE Proceedings Vol. 6785:
ROMOPTO 2006: Eighth Conference on Optics
Valentin I. Vlad, Editor(s)

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