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Optical Properties of Polystyrene Opals Infiltrated with Cyanine Dyes in the form of J-Aggregates

Published online by Cambridge University Press:  01 February 2011

F. Marabelli ,
D. Comoretto ,
D. Bajoni ,
M. Galli  and
L. Fornasari
F. Marabelli
Affiliation:
INFM-Dipartimento di Fisica “A. Volta”, Università degli Studi di Pavia, via Bassi 6, 27100-Pavia (Italy)
D. Comoretto
Affiliation:
INFM-Dipartimento di Chimica e Chimica Industriale, Università degli Studi di Genova, via Dodecaneso 31, 16146-Genova (Italy)
D. Bajoni
Affiliation:
INFM-Dipartimento di Fisica “A. Volta”, Università degli Studi di Pavia, via Bassi 6, 27100-Pavia (Italy)
M. Galli
Affiliation:
INFM-Dipartimento di Fisica “A. Volta”, Università degli Studi di Pavia, via Bassi 6, 27100-Pavia (Italy)
L. Fornasari
Affiliation:
INFM-Dipartimento di Fisica “A. Volta”, Università degli Studi di Pavia, via Bassi 6, 27100-Pavia (Italy)
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Abstract

We report preliminary data on the infiltration of polystyrene opals with cyanine dye water solutions, which are known to form J-aggregates. Different approaches are used to infiltrate cyanines inside opals. The degree of infiltration is evaluated by scanning and transmission electron microscopy as well as micro reflectance spectroscopy. Data show that in spite of the low wettability of polystyrene with water solutions, some infiltration can be achieved. Even though this degree of infiltration is still not enough to observe strong modification on the photonic band structures, further strategies to improve it are in progress.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 846: Symposium DD – Organic and Nanocomposite Optical Materials , 2004 , DD12.11
Copyright
Copyright © Materials Research Society 2005

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