Investigation of the preparation and properties of organic dye/metal oxide composite thin films

Steffen Jaeger; F. Neumann; Claus-Peter Klages

doi:10.1117/12.192129

4 November 1994 Investigation of the preparation and properties of organic dye/metal oxide composite thin films

Steffen Jaeger, F. Neumann, Claus-Peter Klages

Proceedings Volume 2253, Optical Interference Coatings; (1994) https://doi.org/10.1117/12.192129
Event: 1994 International Symposium on Optical Interference Coatings, 1994, Grenoble, France

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.

Citation Download Citation

Steffen Jaeger, F. Neumann, and Claus-Peter Klages "Investigation of the preparation and properties of organic dye/metal oxide composite thin films", Proc. SPIE 2253, Optical Interference Coatings, (4 November 1994); https://doi.org/10.1117/12.192129

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