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Efficiency of organic light-emitting diodes depending on A1 based cathodes
- Issue Date
- 2003
- Publisher
- IEEE
- Citation
- PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON PROPERTIES AND APPLICATIONS OF DIELECTRIC MATERIALS, VOLS 1-3, pp.733 - 736
- Journal Title
- PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON PROPERTIES AND APPLICATIONS OF DIELECTRIC MATERIALS, VOLS 1-3
- Start Page
- 733
- End Page
- 736
- Abstract
- We have investigated the effects of cathode in a device structure of ITO/TPD/Alq(3)/cathode with cathodes of Al, LiF/Al, LiAl, and Ca/Al by measuring the current-voltage-luminance characteristics at room temperature. The device with LiF/Al cathode shows an improvement of external quantum efficiency approximately by a factor of ten compared with Al cathode only device. Our observation shows that-the energy barrier-height in cathode side is important in improving the efficiency of the organic light-emitting diodes.
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Collections - College of Engineering > Department of Science > 1. Journal Articles
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Related Researcher
- Kim, Tae Wan
- Engineering (Applied Science)