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Proceedings Paper

Hybrid bilayer organic light-emitting devices based on high Tg hole transport polymers
Author(s): Ghassan E. Jabbour; Sean E. Shaheen; Michael M. Morrell; Jeffrey D. Anderson; Paul A. Lee; Sankaran Thayumanavan; Stephen Barlow; Seth R. Marder; Erika Bellmann; Robert H. Grubbs; Bernard Kippelen; Neal R. Armstrong; Nasser Peyghambarian
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Paper Abstract

We report on organic electroluminescent devices based on Al cathode with luminous efficiency of 20 lm/W and external quantum efficiency of 4.6 percent. When pulsed in air at room temperature and without any encapsulation, high peak brightness of 4.4 X 106 cd/m2 and high efficiency of 4.4 cd/A are obtained. In contrast to current belief, we demonstrate that device quantum efficiency can be increased by tuning the ionization potential of the hole-transport moieties. The high efficiency and peak brightness reported here with Al cathode are encouraging for the manufacturing of stable devices and the development of electrically injected organic lasers.

Paper Details

Date Published: 18 May 1999
PDF: 8 pages
Proc. SPIE 3623, Organic Photonic Materials and Devices, (18 May 1999); doi: 10.1117/12.348406
Show Author Affiliations
Ghassan E. Jabbour, Optical Sciences Ctr./Univ. of Arizona (United States)
Sean E. Shaheen, Optical Sciences Ctr./Univ. of Arizona (United States)
Michael M. Morrell, Optical Sciences Ctr./Univ. of Arizona (United States)
Jeffrey D. Anderson, Univ. of Arizona (United States)
Paul A. Lee, Univ. of Arizona (United States)
Sankaran Thayumanavan, Beckman Institute and Jet Propulsion Lab. (United States)
Stephen Barlow, Beckman Institute and Jet Propulsion Lab. (United States)
Seth R. Marder, Beckman Institute and Jet Propulsion Lab. (United States)
Erika Bellmann, Beckman Institute (United States)
Robert H. Grubbs, Beckman Institute (United States)
Bernard Kippelen, Optical Sciences Ctr./Univ. of Arizona (United States)
Neal R. Armstrong, Univ. of Arizona (United States)
Nasser Peyghambarian, Optical Sciences Ctr./Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 3623:
Organic Photonic Materials and Devices
Bernard Kippelen, Editor(s)

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