Experimental and theoretical study of ring substituent induced effects on the structural and optical properties of poly(p-pyridylvinylene- phenylenevinelyne)s
| Autor: | D. D. Gebler, M. Fahlman, Arthur J. Epstein, Timothy M. Swager, N. V. Piskun |
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| Rok vydání: | 1998 |
| Předmět: |
chemistry.chemical_classification
Materials science Photoluminescence Mathematics::Commutative Algebra Substituent Physics::Optics General Physics and Astronomy Torsion (mechanics) Polymer Photochemistry law.invention Condensed Matter::Soft Condensed Matter chemistry.chemical_compound Crystallography chemistry law Phenylene Physics::Atomic and Molecular Clusters Physical and Theoretical Chemistry Spectroscopy Absorption (electromagnetic radiation) Light-emitting diode |
| Zdroj: | The Journal of Chemical Physics. 109:2031-2037 |
| ISSN: | 1089-7690 0021-9606 |
| DOI: | 10.1063/1.476717 |
| Popis: | Optical absorption and photoluminescence spectroscopy have been carried out on a new class of (phenylene) ring substituted p-pyridylvinylenephenylenevinelyne polymers used as active materials in light emitting diodes. The effects of the ring substitutions on the optical absorption and photoluminescence energies are qualitatively explained through the use of semiempirical quantum chemical modeling of the ring torsion angles. Reduced aggregation through the use of “strap” substituents on the phenylene rings also is discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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