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Doped thin films of two organic molecules for light-emitting diodes (Articolo in rivista)
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- Doped thin films of two organic molecules for light-emitting diodes (Articolo in rivista) (literal)
- Anno
- 2003-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1063/1.1630156 (literal)
- Alternative label
U. Giovanella, C. Botta, M. Pasini, W. Porzio and S. Destri (2003)
Doped thin films of two organic molecules for light-emitting diodes
in Applied physics letters; AIP, American institute of physics, Melville, NY (Stati Uniti d'America)
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- U. Giovanella, C. Botta, M. Pasini, W. Porzio and S. Destri (literal)
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- U. Giovanella, C. Botta, M. Pasini, W. Porzio and S. Destri - ISMAC-CNR (literal)
- Titolo
- Doped thin films of two organic molecules for light-emitting diodes (literal)
- Abstract
- The photoluminescence and electroluminescence of doped organic materials are reported for thin films prepared by ultrahigh-vacuum coevaporation and by spin coating from solution of two emitting molecules. For both films, efficient energy transfer from the donor to the acceptor molecules is observed without relevant dopant segregation for molar concentrations up to 10%. In spin-coated films the energy transfer from the matrix to the dopant is due to purely resonant energy transfer processes while the cosublimated films show the presence of additional thermally activated hopping processes. Light-emitting diodes fabricated with coevaporated films yield electroluminescence with higher efficiency and stability (literal)
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