Efficient electron injection in organic light emitting diodes with Al-Mg alloy cathode
SCIE
SCOPUS
- Title
- Efficient electron injection in organic light emitting diodes with Al-Mg alloy cathode
- Authors
- Kim, SY; Kim, WK; Kim, KY; Tak, YH; Lee, JL
- Date Issued
- 2006-01
- Publisher
- ELECTROCHEMICAL SOC INC
- Abstract
- We report the enhancement of electron injection using an Al-Mg alloy cathode in organic light emitting diodes (OLEDs). The luminescence value at 15 V drastically increased from 800 to 5800 cd/m(2) as the Al cathode was replaced by an Al-Mg alloy with a 1:1 ratio of Al to Mg in weight percent. Synchrotron radiation photoelectron spectroscopy results showed that the work function of the Al-Mg alloy is lower by 0.2 eV than that of Al. Thus, the energy barrier for electron injection was lowered, reducing the turn-on voltage and increasing the quantum efficiency of OLEDs. (c) 2005 The Electrochemical Society. [DOI: 10.1149/1.2135426] All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/24304
- DOI
- 10.1149/1.2135426
- ISSN
- 1099-0062
- Article Type
- Article
- Citation
- ELECTROCHEMICAL AND SOLID STATE LETTERS, vol. 9, no. 1, page. H1 - H3, 2006-01
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