Energy transfer from a polymer host to a europium complex in light-emitting diodes |
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| Authors: | Zhenjia Wang Ifor D.W. Samuel |
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| Affiliation: | a Department of Chemistry, University of Rochester, Rochester, NY 14627, USA
b School of Physics and Astronomy, University of St. Andrews, St. Andrews, Fife KY16 9SS, UK |
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| Abstract: | Energy transfer leading to electroluminescence of a lanthanide complex, Eu(Fod)3MK (Fod=heptafluoro-dimethyl-octanedionate, MK=4, 4′-bis(N,N-dimethylaminobenzophenone) doped into PVK host is investigated. The optical properties of pure Eu(Fod)3MK and its doping in PVK show that the PVK host can efficiently transfer energy to europium ions through a co-ligand of MK due to good spectrally overlap. Light-emitting diodes (LED) consisting of PVK doped with 1-5 wt% of Eu(Fod)3MK also demonstrates this energy transfer. Organolanthanide complexes doped into a wide-gap conducting polymers would lead to efficient and pure red organic LEDs to solve the full colour conjugated polymer displays. |
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| Keywords: | Lanthanide complexes |
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