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Proceedings Paper

Model dendrons and dendrimers incorporating diphenylamino-substituted diphenylpolyene and PPV-oligomer moieties for NLO applications
Author(s): Kimba Ashworth; Charles W. Spangler; Benjamin Reeves
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Paper Abstract

Bis-(diphenylamino)diphenylpolyenes have been shown to form exceptionally stable, highly absorbing bipolaronic dications in solution and thin film. Replacement of one diphenylamino substituent with a N-(hydroxyethyl), N-ethylaminophenyl moiety yields a polyene series that also form stable bipolarons, and are intensely fluorescent. These new chromophores are also easily attached to either a PMMA backbone or to 3,5-dihydroxybenzyl alcohol to yield functionalized dendrons capable of attachment to various core molecules to yield functionalized dendrimers. Diphenylamino-substituted PPV oligomers can also be obtained with similar functionality. These new materials all possess large two-photon cross-sections and display optical limiting for nanosecond pulses with peak activity extending into the visible portion of the spectrum. In this presentation we will discuss the synthesis of these new materials and preliminary characterization as two-photon absorbers, photoluminescent materials suitable for organic light- emitting diodes, and as dendrimers capable of 3D charge delocalization and exceptionally large third order hyperpolarizabilities.

Paper Details

Date Published: 11 October 1999
PDF: 8 pages
Proc. SPIE 3796, Organic Nonlinear Optical Materials, (11 October 1999); doi: 10.1117/12.368271
Show Author Affiliations
Kimba Ashworth, Montana State Univ./Bozeman (United States)
Charles W. Spangler, Montana State Univ./Bozeman (United States)
Benjamin Reeves, Montana State Univ./Bozeman (United States)

Published in SPIE Proceedings Vol. 3796:
Organic Nonlinear Optical Materials
Manfred Eich; Manfred Eich; Mark G. Kuzyk, Editor(s)

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