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Reductive photopatterning of phenylene-vinylene-based polymers

Published online by Cambridge University Press:  15 March 2011

T. Kavc ,
G. Langer ,
W. Kern ,
A. Ruplitsch ,
K. Mahler ,
F. Stelzer ,
G. Hayn ,
R. Saf ,
E.J.W. List  and
E. Zojer
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T. Kavc
Affiliation:
Institute for Chemistry and Technology of Organic Materials, Graz University of Technology, Graz, Austria
G. Langer
Affiliation:
Institute for Chemistry and Technology of Organic Materials, Graz University of Technology, Graz, Austria
W. Kern
Affiliation:
Institute for Chemistry and Technology of Organic Materials, Graz University of Technology, Graz, Austria
A. Ruplitsch
Affiliation:
Institute for Chemistry and Technology of Organic Materials, Graz University of Technology, Graz, Austria
K. Mahler
Affiliation:
Institute for Chemistry and Technology of Organic Materials, Graz University of Technology, Graz, Austria
F. Stelzer
Affiliation:
Institute for Chemistry and Technology of Organic Materials, Graz University of Technology, Graz, Austria
G. Hayn
Affiliation:
Institute for Chemistry and Technology of Organic Materials, Graz University of Technology, Graz, Austria
R. Saf
Affiliation:
Institute for Chemistry and Technology of Organic Materials, Graz University of Technology, Graz, Austria
E.J.W. List
Affiliation:
Institute of Solid State Physics, Graz University of Technology, Graz, Austria
E. Zojer
Affiliation:
Institute of Solid State Physics, Graz University of Technology, Graz, Austria
M. T. Ahmed*
Affiliation:
Institute of Solid State Physics, Graz University of Technology, Graz, Austria
A. Pogantsch
Affiliation:
Institute of Solid State Physics, Graz University of Technology, Graz, Austria
K.F. Iskra
Affiliation:
Institute for Experimental Physics, Graz University of Technology, Graz, Austria
T. Neger
Affiliation:
Institute for Experimental Physics, Graz University of Technology, Graz, Austria
H.-H. Hörhold
Affiliation:
Institute of Organic Chemistry and Macromolecular Chemistry, University of Jena, Germany
H. Tillmann
Affiliation:
Institute of Organic Chemistry and Macromolecular Chemistry, University of Jena, Germany
G. Kranzelbinder
Affiliation:
Ecole Normale Superieure de Cachan LPQM, Cachan, France
E. Toussaere
Affiliation:
Ecole Normale Superieure de Cachan LPQM, Cachan, France
G. Jakopic
Affiliation:
Joanneum Institute of Nanostructured Materials and Photonics, Weiz, Austria
*
*) To whom all correspondence should be adressed
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Abstract

Photochemical methods were developed to obtain a variation of the refractive index in aromatic polymer surfaces and a change in the photoluminescence characteristics of phenylenevinylene-based polymers. Films of aromatic polymers, among them polystyrene (PS), poly(2-vinylnaphthalene) (PVN) and derivatives of poly(p-phenylene-vinylene) (PPV) were UV irradiated in the presence of gaseous hydrazine (N2H4). The photoreaction led to a strong reduction of the refractive index of the polymers due to a hydrogenation of the aromatic units. In the case of PPV, we observed reductive photobleaching. This new technique was employed to produce photogenerated patterns in PPV. The results are compared to oxidative bleaching.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 708: Symposium BB – Organic Optoelectronic Materials, Processing and Devices , 2001 , BB11.3/AA11.3
Copyright
Copyright © Materials Research Society 2002

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Footnotes

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Affiliation: Mansoura University, Mansoura 35516, Egypt

References

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