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Proceedings Paper

Conjugated polymer infiltrated silica opals and the effect of nano-confinement on the luminescent spectra
Author(s): Brandon C. Jarvis; Cody L. Gilleland; Jose M. Gutierrez; John W. Stadler; Jessica Gillespe; Michael Sampson; Alan Dalton; John P. Ferraris; Robert Glosser; Preston B. Landon
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Paper Abstract

Self assembled synthetic opals composed of spheres with 200-1500nm diameters were infiltrated with poly[2-methoxy-5-(20-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) and Poly [(m-phenylenevinylene)-co- (2,5-dioctoxy-p-phenylenevinylene)] (PmPV) which are luminescent polymers. The luminescence spectra of the polymers was blue shifted when infiltrated deep into the nano-scopic opal pores relative to the luminescence spectra from thick films of the bulk polymers. Inverse composite plastic and luminescent polymer opals were constructed resulting in a significant blue shift in the peek luminescence of MEH-PPV from 568nm for the bulk polymer to 520nm in the inverse opal structure. We found that the majority of the blue shifting observed could be explained by the formation of isolated polymer strands within the opals. Silica spheres were coated with MEH-PPV, dispersed in H2O and coated with polyelectrolytes which recharged and sterically stabilized the colloidal surfaces. Luminescence spectra from individual and self-assembled silica spheres coated with MEH-PPV were also blue shifted.

Paper Details

Date Published: 18 August 2005
PDF: 10 pages
Proc. SPIE 5929, Physical Chemistry of Interfaces and Nanomaterials IV, 592917 (18 August 2005); doi: 10.1117/12.617006
Show Author Affiliations
Brandon C. Jarvis, The Univ. of Texas at Dallas (United States)
Cody L. Gilleland, The Univ. of Texas at Dallas (United States)
Jose M. Gutierrez, The Univ. of Texas Pan American (United States)
John W. Stadler, The Univ. of Texas at Dallas (United States)
Jessica Gillespe, The Univ. of Texas at Dallas (United States)
Michael Sampson, The Univ. of Texas at Dallas (United States)
Alan Dalton, The Univ. of Texas at Dallas (United States)
John P. Ferraris, The Univ. of Texas at Dallas (United States)
Robert Glosser, The Univ. of Texas at Dallas (United States)
Preston B. Landon, The Univ. of Texas at Dallas (United States)


Published in SPIE Proceedings Vol. 5929:
Physical Chemistry of Interfaces and Nanomaterials IV
Clemens Burda; Randy J. Ellingson, Editor(s)

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