Electro-optical measurements, stability, and physical charge behavior of rare-earth based organic light emitting diode

G. Santos; F. J. Fonseca; A. M. Andrade; V. Deichmann; L. Ackcelrud; M. Peres; T. Monteiro; W. Simões; L. Pereira

doi:10.1117/12.734901

14 November 2007 Electro-optical measurements, stability, and physical charge behavior of rare-earth based organic light emitting diode

G. Santos, F. J. Fonseca, A. M. Andrade, V. Deichmann, L. Ackcelrud, M. Peres, T. Monteiro, W. Simões, L. Pereira

Author Affiliations +

Proceedings Volume 6655, Organic Light Emitting Materials and Devices XI; 66551V (2007) https://doi.org/10.1117/12.734901
Event: Photonic Devices + Applications, 2007, San Diego, California, United States

Abstract

In this work we report for the first time the electroluminescence of two different kinds of rare earth complexes based Organic Light Emitting Diodes, the Tb(ACAC)₃bipy [Tris (acetylacetonate) - 2,2' - bipyridinyl - terbium(III)] and the Eu(TTA)₃bipy [tris(4,4,4 -trifluoro -1 - (2 - thienyl) -1,3 - butanediono - 2,2' - bipyridinyl - europium(III)]. In both devices the corresponding electroluminescence spectrum is obtained (red for europium with (x,y) CIE coordinates near (0.64, 0.34) and green for terbium near (0.28, 0.55) coordinates) at a driving voltage near 16 - 17 V with a maximum electrical current of 1 mA. The Wall Plug Efficiency is about 10^-3% in both cases.

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G. Santos, F. J. Fonseca, A. M. Andrade, V. Deichmann, L. Ackcelrud, M. Peres, T. Monteiro, W. Simões, and L. Pereira "Electro-optical measurements, stability, and physical charge behavior of rare-earth based organic light emitting diode", Proc. SPIE 6655, Organic Light Emitting Materials and Devices XI, 66551V (14 November 2007); https://doi.org/10.1117/12.734901

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