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Proceedings Paper

Investigation of the preparation and properties of organic dye/metal oxide composite thin films
Author(s): Steffen Jaeger; F. Neumann; Claus-Peter Klages
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Paper Abstract

In this study the growth, structure and physical, particularly optical properties of composite thin films (copper-phthalocyanine-SiO2) with different dye contents are investigated by means of optical spectroscopy (UV-IR), electron probe micro analysis, atomic force microscopy and scanning electron microscopy measurements and compared with the properties of pure dye thin films of different thicknesses and dye/metal oxide multilayer structures, respectively. The composite thin films show spectral shifts and changes in the extension and the intensity of the typical absorption bands in the visible spectral range depending on the dye concentration in the composites. This behavior is accompanied by pronounced color changes, e.g. from blue-green to green in the CuPc-SiO2 system. The results show, that the CuPc- SiO2 composite properties are mainly influenced by the size and kind of dye aggregates in the films (monomer, dimer) and not by interaction of dye molecules with the metal oxide matrix.

Paper Details

Date Published: 4 November 1994
PDF: 7 pages
Proc. SPIE 2253, Optical Interference Coatings, (4 November 1994); doi: 10.1117/12.192129
Show Author Affiliations
Steffen Jaeger, Fraunhofer-Institut fuer Schicht- und Oberflaechentechnik (Germany)
F. Neumann, Fraunhofer-Institut fuer Schicht- und Oberflaechentechnik (Germany)
Claus-Peter Klages, Fraunhofer-Institut fuer Schicht- und Oberflaechentechnik (Germany)


Published in SPIE Proceedings Vol. 2253:
Optical Interference Coatings

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