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Photonic Applications of Bipolaron Formation in Bis-(Diphenylamino)Diphenylpolyene

Published online by Cambridge University Press:  10 February 2011

K. Ashworth ,
B. Reeves ,
A. Frost  and
C. Spangler
K. Ashworth
Affiliation:
Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717
B. Reeves
Affiliation:
Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717
A. Frost
Affiliation:
Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717
C. Spangler
Affiliation:
Department of Chemistry and Biochemistry, Montana State University, Bozeman, MT 59717
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Abstract

Bis-(dialkylamino) and bis-(diphenylamino) substituted diphenylpolyenes have recently been shown to have exceptionally large two-photon cross-sections, and have also been used in optical power limiting (OPL) applications. Another potential mechanism for OPL in these materials involves the photogeneration of highly absorbing polaronic radical-cations or bipolaronic dications which can then function as highly absorbing reverse saturable absorbers (RSAs). The synthesis of series of these unique polyenes has been carried out, as well as studies of chemically induced bipolaron formation in solution. In order to actually be used in OPL devices, it is probable that these chromophores will need to be incorporated into polymer formulations, In this paper we describe three distinct ways that these chromophores can be incorporated in polymer structures: (1) as pendant groups attached to a PMMA backbone, (2) as formal repeat units in a copolymer, and (3) perhaps the most interesting, as surface attached functionalities in dendrimer formulations. The formation of bipolaron charge species in these polymers will be addressed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 561: Symposium F – Organic Nonlinear Optical Materials and Devices , 1999 , 69
Copyright
Copyright © Materials Research Society 1999

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References

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