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  • Title: [Green electroluminescence generated from a new rare earth complex: Tb(asprin)3phen].
    Author: Duan N, Zhang X, Gao X, Liu S, Xu X, Tao D, Xu Y, Wu J.
    Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 2001 Jun; 21(3):267-70. PubMed ID: 12947642.
    Abstract:
    Pure Green and narrow bandwidth emission from organic electroluminescent device was presented by using a new rare earth complex Tb(asprin)3phen as emissive layer. The structure of the device was ITO/PVK:Tb(asprin)3phen/Al, where PVK was used to improve the film-forming ability and conductivity of Tb(asprin)3phen. The electroluminescent property of the device was studied. It proved that this new kind of rare earth complex has excellent optoluminescent and electroluminescent properties. The electroluminescent mechanism of the device was proposed by measuring and analyzing the emission and excitation spectra of the emissive layer. The excitation spectrum of Tb(asprin)3phen-dispersed PVK film was very similar to that of the PVK. We proposed that the excited carriers of PVK and Tb(asprin)3phen were captured by Tb3+ and light was emitted when the electrons and holes recombined at Tb3+.
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