Crystallization control of organic dyes in self-organized microdomes

Olaf Karthaus; Kazuaki Kaga; Hiroaki Kageyama

doi:10.1117/12.549131

8 September 2004 Crystallization control of organic dyes in self-organized microdomes

Olaf Karthaus, Kazuaki Kaga, Hiroaki Kageyama

Proceedings Volume 5464, Organic Optoelectronics and Photonics; (2004) https://doi.org/10.1117/12.549131
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

A dewetting process of an evaporating solution is used to form micrometer-sized amorphous droplets, or domes, of the solute on substrates such as silicon, mica, glass, and indium-tin-oxide. The dome size can be controlled by the casting conditions. Higher concentration and slower evaporation of the solvent leads to larger domes. Upon annealing, the dyes may crystallize and form polycrystalline or single crystalline domes or crystalline fibers. Photophysical properties of the domes were investigated and it was found that the absorption and fluorescence spectra depend on the aggregate kind (polycrystalline or single crystalline) and the dome size.

Citation Download Citation

Olaf Karthaus, Kazuaki Kaga, and Hiroaki Kageyama "Crystallization control of organic dyes in self-organized microdomes", Proc. SPIE 5464, Organic Optoelectronics and Photonics, (8 September 2004); https://doi.org/10.1117/12.549131

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