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Combined effects of microcavity and dielectric capping layer on bidirectional organic light-emitting diodes |
Optics Letters, Vol. 37, Issue 11, pp. 2007-2009 (2012)
http://dx.doi.org/10.1364/OL.37.002007
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Abstract
We report on highly enhanced and controlled light outcoupling of bidirectional organic light-emitting diodes by introduction of an enhanced microcavity structure as well as an organic capping layer (OC). Combining both OC and microcavity, we find that the overall external quantum, as well as current efficiency (CE), can be greatly enhanced. Especially, the CE with an appropriate thickness of OC is almost 1.75 times larger than that of the reference device without OC. Furthermore, we also analyze our devices with a numerical optical model calculating the flux of outcoupled photons, and compare theoretical predictions with our experimental results.
© 2012 Optical Society of America
OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(250.0250) Optoelectronics : Optoelectronics
ToC Category:
Optical Devices
History
Original Manuscript: February 17, 2012
Manuscript Accepted: March 23, 2012
Published: May 30, 2012
Citation
Jonghee Lee, Simone Hofmann, Mauro Furno, Yong Hyun Kim, Jeong-Ik Lee, Hye Yong Chu, Björn Lüssem, and Karl Leo, "Combined effects of microcavity and dielectric capping layer on bidirectional organic light-emitting diodes," Opt. Lett. 37, 2007-2009 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-11-2007
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