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Photonic Properties of Dendrons and Dendrimers Incorporating Bis-(Diphenylphosphino)Diphenylpolyenes

Published online by Cambridge University Press:  21 March 2011

L. Madrigal
Affiliation:
Department of Chemistry and Biochemistry, Optical Technology Center, Montana State University, Bozeman, MT 59717, madrigal@montana.edu
K. Kuhl
Affiliation:
Department of Chemistry and Biochemistry, Optical Technology Center, Montana State University, Bozeman, MT 59717
C. Spangler
Affiliation:
Department of Chemistry and Biochemistry, Optical Technology Center, Montana State University, Bozeman, MT 59717
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Abstract

Substituent effects are quite important in fine tuning the photonic properties of conjugated molecules. In designing new chromophores, electron-donating or withdrawing substituents affect the electron distribution in the conjugation sequence, and previous studies to establish structure- property relationships have noted that when second row elements replace first row elements in the structure (e.g. S for O in donor groups), large enhancements of both the second and third order optical nonlinearity are observed. However, along with the observed enhancement of the nonlinearity, a red-shift in the absorption spectra occurs, often with peak broadening and tailing. This absorptivity-nonlinearity trade-off has been a constant concern in proposing organic materials for electro-optic device applications. In this presentation we will review our recent activity in designing new chromophores wherein P replaces N in donor groups and dendrimer building blocks, and the consequences and opportunities resulting from the observed large blue shifts in the spectra.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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References

1. Spangler, C., Faircloth, T., Elandaloussi, E. H. and Reeves, B., Mat. Res. Soc. Symp. Proc. 488, p. 283 (1998).Google Scholar
2. Spangler, C. W., Elandaloussi, E. H., Casstevens, M. K., Kumar, D. N., Weibel, J. F., Burzynski, R., Proc. SPIE 3798, p. 117 (1999).Google Scholar
3. Elandaloussi, E. H. and Spangler, C. W., Polym.Preprints 39(2), p. 1055 (1998).Google Scholar
4. Elandaloussi, E. H., Spangler, C. W., Dirk, C., Casstevens, M., Kumar, D. and Burzynski, R., Mat Res. Soc. Symp. Proc. 561, p. 63 (1999).Google Scholar
5. Sonnenberg, W., Hyfield, A., Short, K., Spangler, L. and Spangler, C., Mat. Res. Soc. Symp. Proc. (submitted).Google Scholar
6. Spangler, L. Google Scholar
7. Spangler, C. W., J. Mater. Chem. 9, p. 2013 (1999).Google Scholar
8. Casstevens, M. K., Kumar, D., Ghosal, S., Burzynski, R, Spangler, C. W. and Elandaloussi, E. H., Nonlinear Optics 21, p. 263 (1999).Google Scholar
9. Madrigal, L. G. and Spangler, C. W., Mat. Res. Soc. Symp. Proc. 561, p. 75 (1999).Google Scholar
10. Madrigal, L. G. and Spangler, C. W., Proc. SPIE 3796, p. 191 (1999).Google Scholar
11. Spangler, C. W., in Handbook of Conducting Polymers, 2nd ed., edited by Skotheim, T., Elsenbaumer, R. and Reynolds, J., John Wiley and Sons, Ltd., Chichester, 1998, pp.743763.Google Scholar