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Conference paper

Design of molecular interactions in pigment particles to control the emission yield of thin films

Authors list: Schlettwein, D.; Graaf, H.; Yanagi, H.; Jaeger, N.; Wöhrle, D.

Appeared in: Final program and proceedings of IS&T's NIP 16: International Conference on Digital Printing Technologies

Publication year: 2000

Pages: 477-482

ISBN: 0-89208-230-5

DOI Link: https://doi.org/10.2352/ISSN.2169-4451.2000.16.1.art00017_2

Conference: 16th International Conference on Digital Printing Technology (NIP16)

Abstract:

Perylene- and phthalocyanine-pigment molecules were systematically modified and consequences were studied for their solid state properties. Thin films (1- 100 nm) of these compounds were prepared by physical vapor deposition on Si- based interdigitated microelectrode arrays or transparent insulating substrates such as (amorphous) glass or (single crystalline) alkali halides. Intermolecular interactions were probed by optical measurements in absorption and emission as well as by measurements of the electrical conductivity and the field effect (OFET). The morphology of films was studied by transmission electron microscopy (TEM) and atomic force microscopy (AFM).Different interactions among the molecules and with the substrate surfaces allowed to prepare either crystalline or amorphous films. Crystalline films were characterized by strong chromophore coupling leading to characteristic splitting, well- defined shifts of optical absorption bands and emission mainly from excimeric species whereas the chromophore coupling in the amorphous films was suppressed sufficiently to provide a significantly increased photoemission yield from uncoupled monomeric states.

Authors/Editors

- Uni.-Prof. Dr. Derck Schlettwein

Citation Styles

Harvard Citation style: Schlettwein, D., Graaf, H., Yanagi, H., Jaeger, N. and Wöhrle, D. (2000) Design of molecular interactions in pigment particles to control the emission yield of thin films, in Final program and proceedings of IS&T's NIP 16: International Conference on Digital Printing Technologies. Springfield, Va.: IS&T, the Society for Imaging Science and Technology. pp. 477-482. https://doi.org/10.2352/ISSN.2169-4451.2000.16.1.art00017_2

APA Citation style: Schlettwein, D., Graaf, H., Yanagi, H., Jaeger, N., & Wöhrle, D. (2000). Design of molecular interactions in pigment particles to control the emission yield of thin films. In Final program and proceedings of IS&T's NIP 16: International Conference on Digital Printing Technologies. (pp. 477-482). IS&T, the Society for Imaging Science and Technology. https://doi.org/10.2352/ISSN.2169-4451.2000.16.1.art00017_2