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Proceedings Paper

Electro-optical measurements, stability, and physical charge behavior of rare-earth based organic light emitting diode
Author(s): G. Santos; F. J. Fonseca; A. M. Andrade; V. Deichmann; L. Ackcelrud; M. Peres; T. Monteiro; W. Simões; L. Pereira
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Paper 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.

Paper Details

Date Published: 14 November 2007
PDF: 7 pages
Proc. SPIE 6655, Organic Light Emitting Materials and Devices XI, 66551V (14 November 2007); doi: 10.1117/12.734901
Show Author Affiliations
G. Santos, Univ. de São Paulo (Brazil)
F. J. Fonseca, Univ. de São Paulo (Brazil)
A. M. Andrade, Univ. de São Paulo (Brazil)
V. Deichmann, Univ. Federal do Paraná (Brazil)
L. Ackcelrud, Univ. Federal do Paraná (Brazil)
M. Peres, Univ. de Aveiro (Portugal)
T. Monteiro, Univ. de Aveiro (Portugal)
W. Simões, Univ. de Aveiro (Portugal)
L. Pereira, Univ. de Aveiro (Portugal)

Published in SPIE Proceedings Vol. 6655:
Organic Light Emitting Materials and Devices XI
Zakya H. Kafafi; Franky So, Editor(s)

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