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Exciton dynamics in blends of phosphorescent emitters

Title data

Schütz, Christoph ; Höfer, Bianca ; Jaiser, Frank ; Krüger, Hartmut ; Thesen, Manuel W. ; Janietz, Silvia ; Köhler, Anna:
Exciton dynamics in blends of phosphorescent emitters.
In: Physica Status Solidi B. Vol. 245 (May 2008) Issue 5 . - pp. 810-813.
ISSN 0370-1972
DOI: https://doi.org/10.1002/pssb.200743441

Abstract in another language

Cascading energy transfer is a usually undesired effect in organic-host guest systems that are designed for light-emitting purposes. Here we demonstrate a chemical approach to suppressing undesired energy transfer from the blue to the red emitter in multicomponent polymer blends. We have combined a red, green and blue emitting Ir-complex each with charge transporting molecules to a side-chain copolymer. The covalent attachment of the phosphorescent emitter is found to prevent cascading energy transfer through steric shielding. This approach approximately doubles the efficiency and brightness of polymer light emitting diodes. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: 78.55.Kz; 81.05.Lg
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie - 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 > Lehrstuhl Experimentalphysik II - Optoelektronik weicher Materie
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 09 Mar 2015 15:51
Last Modified: 21 Apr 2016 11:30
URI: https://eref.uni-bayreuth.de/id/eprint/7929