Tuning of Color by Different Alignment of Dye Molecules
Chapter
Abstract
Single crystals and highly oriented transparent layers of the polymethine dye 1,7-bis(dimethylamino)heptamethine were prepared. The superstructure of these materials were varied by using different counterions and a new technology of layer preparation. The extraordinary optical properties of the solid state materials were investigated by polarized reflection and absorption spectroscopy. Due to strong intermolecular transition dipole interactions and polaritons, the absorption maxima could be shifted within a very broad spectral region both by polymorphism and by changing the molecule inclination with respect to the crystal/layer surface.
Keywords
Transition Dipole Transition Dipole Moment Layer Preparation Directional Dispersion Broad Spectral Region
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Preview
Unable to display preview. Download preview PDF.
References
- 1.Ringsdorf, H., Schlarb, B. and Venzmer, J. (1988) Molecular Architecture of Oriented Systems of Polymers, Angew. Chem. Int. Ed. Engl. 27, 113–155.CrossRefGoogle Scholar
- 2.McDermott, G., Prince, S. M., Freer, A. A., Hawethornthwaite-Lawless, A. M., Papiz, M. Z., Cogdell, R. J. and Isaacs, N. W. (1995) Crystal structure of an integral membrane light harvesting complex from photosynthetic bacteria, Nature 174, 5I7–521.CrossRefGoogle Scholar
- 3.Zollinger, H. Color Chemistry: Syntheses, Properties and Applications of Organic Dyes and Pigments; VCH Publishers, New York, 1987.Google Scholar
- 4.Law, K.-Y. (1993) Organic Photoconducting Materials: Recent Trends and Developments, Chem. Rev. 93, 449–486.CrossRefGoogle Scholar
- 5.Matsuoka, M. (1997) NIR Dyes for Information Recording, from Origin to Update, Proceedings of NATO Advanced Workshop, Trest.Google Scholar
- 6.Scheibe, G. (1936) Über die Veränderlichkeit des Absorptionsspektrums einiger Sensibilisierungsfarbstoffe and deren Ursache, Angew. Chem. 31, 563.Google Scholar
- 7.Czikkely, V., Försterling, H. D. and Kuhn, H. (1970) Light Absorption and Structure of Aggregates of Dye Molecules, Chem. Phys. Lett. 6, 11–14.CrossRefGoogle Scholar
- 8.Dähne, L., Reck, G., Horvath, A. and Weiser, G. (1996) The Chameleon Dye 1,7-Bis(dimethylamino)heptamethine, Adv. Mater. 8, 486–490.CrossRefGoogle Scholar
- 9.Mills, D. L. and Burstein, E. (1974) Polaritons: the electromagnetic modes of media, Rep. Prog. Phys. 37, 817–925.CrossRefGoogle Scholar
- 10.Davydov, A. S. (1962) Theory of Molecular Excitons, McGraw-Hill: New York, pp. 23–47; Böttcher, H. (1992) Specific Optical and Electrical Properties of Vacuum-Deposited Thin Films of Dyes, J. Prakt. Chem. 334, 14–24.Google Scholar
- 11.Dähne, L. (1995) Self-organization of streptopolymethine dye molecules in thin layers, J. Am. Chem. Soc. 117,12855–12860CrossRefGoogle Scholar
- 12.Dähne, L. and Biller, E. (1998) Variation of color by polymorphism in dye aggregates, Adv. Mater. in press Google Scholar
- 13.Dähne, L. Biller, E. and Baumgärtel, H. (1998) Polariton-induced color tuning of thin dye layers, Angew. Chem. in press Google Scholar
- 14.Sano, N. and Tanaka, J. (1986) Electronic Spectra of Two Polymorphs of (5-Dimethylamino-2,4-pentadienylidene)dimethylammonium perchlorate, Bull. Chem. Soc. Jpn. 59, 843–851.CrossRefGoogle Scholar
Copyright information
© Springer Science+Business Media Dordrecht 1998