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Simultaneous efficiency enhancement and self-cleaning effect of white organic light-emitting devices by flexible antireflective films |
Optics Letters, Vol. 36, Issue 14, pp. 2635-2637 (2011)
http://dx.doi.org/10.1364/OL.36.002635
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Abstract
In this Letter, we report the improved light outcoupling efficiency of conventional white organic light-emitting devices (OLEDs) by a kind of multifunctional film with both antireflective and superhydrophobic ability. This film consisted of regular polydimethylsiloxane (PDMS) nanopillar arrays, which were readily batch produced by low-cost imprint lithography. The nanopillar arrays could effectively eliminate the light total reflection and enhance the device efficiency of OLEDs by producing the gradual refractive index due to the decreasing material density from glass to air. Moreover, owing to its superhydrophobicity (contact angle
© 2011 Optical Society of America
OCIS Codes
(090.2880) Holography : Holographic interferometry
(230.3670) Optical devices : Light-emitting diodes
(310.1210) Thin films : Antireflection coatings
(310.6628) Thin films : Subwavelength structures, nanostructures
ToC Category:
Optical Devices
History
Original Manuscript: April 21, 2011
Revised Manuscript: June 12, 2011
Manuscript Accepted: June 14, 2011
Published: July 12, 2011
Citation
Dong Wu, Yong-Biao Zhao, Si-Zhu Wu, Yue-Feng Liu, Hao Zhang, Shuai Zhao, Jing Feng, Qi-Dai Chen, Dong-Ge Ma, and Hong-Bo Sun, "Simultaneous efficiency enhancement and self-cleaning effect of white organic light-emitting devices by flexible antireflective films," Opt. Lett. 36, 2635-2637 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-14-2635
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