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Low-cost electrochemical treatment of indium tin oxide anodes for high-efficiency organic light-emitting diodes.
- Source :
-
Applied Physics Letters . 1/27/2014, Vol. 104 Issue 4, p043306-1-043306-4. 4p. 2 Charts, 7 Graphs. - Publication Year :
- 2014
-
Abstract
- We demonstrate a simple low-cost approach as an alternative to conventional O2 plasma treatment to modify the surface of indium tin oxide (ITO) anodes for use in organic light-emitting diodes. ITO is functionalized with F- ions by electrochemical treatment in dilute hydrofluoric acid. An electrode with a work function of 5.2 eV is achieved following fluorination. Using this electrode, a maximum external quantum efficiency of 26.0% (91 cd/A, 102 lm/W) is obtained, which is 12% higher than that of a device using the O2 plasma-treated ITO. Fluorination also increases the transparency in the near-infrared region [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 104
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 94247432
- Full Text :
- https://doi.org/10.1063/1.4862315