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Electronic excitations in luminescent conjugated polymers

Title data

Friend, Richard H. ; Denton, G. J. ; Halls, J. J. M. ; Harrison, N. T. ; Holmes, Andrew B. ; Köhler, Anna ; Lux, A. ; Moratti, S. C. ; Pichler, K. ; Tessler, N. ; Towns, K. ; Wittmann, H. F.:
Electronic excitations in luminescent conjugated polymers.
In: Solid State Communications. Vol. 102 (1997) Issue 2-3 . - pp. 249-258.
ISSN 1879-2766
DOI: https://doi.org/10.1016/S0038-1098(96)00715-6

Abstract in another language

We report progress in the processing and application of poly(phenylene vinylene), PPV, as the emissive layer in electroluminescent diodes, LEDs. Photoluminescence efficiencies above 60% for solid films of PPV are now achieved and single-layer EL diodes achieve luminous efficiencies above 2 Lumen W−1 and peak brightnesses up to 90 000 cd m−2. We discuss measurements of photoconductivity, photovoltaic response, photoluminescence excitation spectra and stimulated emission in films of PPV. We consider that the photoexcited state in these films of PPV is the intrachain singlet exciton. We demonstrate that PPV of this type can show stimulated emission in sub-picosecond pump-probe experiments and can be used as the active lasing medium when incorporated in suitable microcavity structures.

Further data

Item Type: Article in a journal
Refereed: No
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics II - Optoelectronics of Soft Matter > Chair Experimental Physics II - Optoelectronics of Soft Matter - Univ.-Prof. Dr. Anna Köhler
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics II - Optoelectronics of Soft Matter
Result of work at the UBT: No
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 18 Mar 2015 10:22
Last Modified: 18 Mar 2015 10:22
URI: https://eref.uni-bayreuth.de/id/eprint/8484