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Received April 20, 2007
Accepted May 20, 2007
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Single-layer organic-light-emitting devices fabricated by screen printing method
Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea
sungmcho@skku.edu
Korean Journal of Chemical Engineering, January 2008, 25(1), 176-180(5), 10.1007/s11814-008-0032-3
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Abstract
Single-layer organic-light-emitting devices (OLEDs) have been fabricated by screen printing method. Using the screen printing method, a polystyrene (PS) film doped with NPB, Alq3, and rubrene was deposited to have the thickness of 100 nm. The film was used for the fabrication of single-layer OLEDs. In order to estimate the performance of the devices, single-layer OLEDs of the same structure were also fabricated by spin coating and compared with those fabricated by screen printing. The spin-coated OLEDs were turned on at 10 V and reached a maximum brightness of 1,100 Cd/m2 at 21 V. The screen-printed OLEDs showed the same turn-on voltage but with a maximum brightness of 110 Cd/m2 at 14 V.
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References
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