Photophysical studies on nanostructured PPV-systems
| Autor: | Ryan C. Smith, Christoph Gadermaier, J. Partee, Douglas L. Gin, Günther Leising, Peter Markart, Joseph Shinar, W. Graupner, Emil List |
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| Rok vydání: | 2000 |
| Předmět: |
Materials Chemistry2506 Metals and Alloys
Nanotube superlattices Materials science Superlattice photoinduced absorption Polaron Lyotropic Polymer chemistry Electronic Materials Chemistry Optical and Magnetic Materials poly(phenylene vinylene) and derivatives Computer Science::Information Retrieval Mechanical Engineering Metals and Alloys Electronic Optical and Magnetic Materials Condensed Matter Physics Mechanics of Materials 2506 Condensed Matter::Soft Condensed Matter Chemical physics Continuous wave Nanometre Absorption (chemistry) Excitation |
| Zdroj: | Synthetic Metals. :523-526 |
| ISSN: | 0379-6779 |
| DOI: | 10.1016/s0379-6779(99)00411-7 |
| Popis: | We have used continuous wave photoinduced absorption (PIA) to probe the (spin-1/2) polaron and (spin-1) triplet excitations in bulk poly(para-phenylene vinylene) (PPV) films and isolated PPV chains incorporated into a self-assembled matrix ordered at the nanometer scale (nano-PPV). The ordering is a result of the lyotropic liquid crystalline character of the matrix material. We investigated the influence of the chain isolation on the transition energies and the effect of the resulting one-dimensionality on the excitation dynamics. |
| Databáze: | OpenAIRE |
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