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Issue 23, 2014
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Record-high hyperpolarizabilities in conjugated polymers

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Abstract

Disubstituted poly(phenanthrene), a conjugated polymer, has been studied by hyper-Rayleigh scattering. Although this compound lacks the donor–acceptor motif that is typically associated with a strong second-order nonlinear optical response, the (intrinsic) hyperpolarizability ranks among the highest ever measured, breaking the longstanding apparent limit. The linear and nonlinear optical properties of the polymer depend strongly on the solvent conditions, affecting the macromolecular organization. An explanation for these unexpected results is postulated and is based on modulation of conjugation along the polymer backbone. As the molecular structure of the compound does not at all fit into the classical paradigms, our observations put these theories into perspective.

Graphical abstract: Record-high hyperpolarizabilities in conjugated polymers

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Supplementary files

Article information


Submitted
26 Mar 2014
Accepted
24 Apr 2014
First published
24 Apr 2014

This article is Open Access

J. Mater. Chem. C, 2014,2, 4533-4538
Article type
Paper
Author version available

Record-high hyperpolarizabilities in conjugated polymers

S. Van Cleuvenbergen, I. Asselberghs, W. Vanormelingen, T. Verbiest, E. Franz, K. Clays, M. G. Kuzyk and G. Koeckelberghs, J. Mater. Chem. C, 2014, 2, 4533
DOI: 10.1039/C4TC00616J

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