TITLE

Plasma damage-free deposition of Al cathode on organic light-emitting devices by using mirror shape target sputtering

AUTHOR(S)
Han-Ki Kim; Kim, D.-G.; Lee, K.-S.; Huh, M.-S.; Jeong, S. H.; Kim, K. I.; Kim, H.; Han, D. W.; Kwon, J. H.
PUB. DATE
November 2004
SOURCE
Applied Physics Letters;11/8/2004, Vol. 85 Issue 19, p4295
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on the fabrication of plasma damage-free organic light-emitting devices (OLEDs) by using a mirror shape target sputtering (MSTS) technique. It is shown that OLEDs with Al cathode deposited by the MSTS show much lower leakage current (1×10-5 mA/cm2) at reverse bias of -6 V, compared to that (1×10-1–∼10-2 mA/cm2 at -6 V) of OLEDs with Al cathodes grown by conventional dc magnetron sputtering. This indicates that there is no plasma damage, which is caused by the bombardment of energetic particles. This suggests that MSTS could be a useful plasma damage-free and low-temperature deposition technique for both top- and bottom-emitting OLEDs and flexible displays.
ACCESSION #
14975001

 

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