Effect of ultraviolet-ozone treatment of indium-tin-oxide on electrical properties of organic light emitting diodes
SCIE
SCOPUS
- Title
- Effect of ultraviolet-ozone treatment of indium-tin-oxide on electrical properties of organic light emitting diodes
- Authors
- Kim, SY; Lee, JL; Kim, KB; Tak, YH
- Date Issued
- 2004-03-01
- Publisher
- AMER INST PHYSICS
- Abstract
- We report the change of surface electronic structure of indium-tin-oxide (ITO) as a function of ultraviolet (UV)-ozone treatment time. The voltage of organic light emitting diodes at a current density of 100 mA/cm(2) was reduced as the surface treatment time using UV-ozone was lengthened. X-ray photoelectron spectroscopy results showed that the relative concentration of carbon atoms decreased, but oxygen concentration increased relatively with UV-ozone treatment. This led to the increase in the ITO work function via the reduction of operation voltage. (C) 2004 American Institute of Physics.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/10548
- DOI
- 10.1063/1.1635995
- ISSN
- 0021-8979
- Article Type
- Article
- Citation
- JOURNAL OF APPLIED PHYSICS, vol. 95, no. 5, page. 2560 - 2563, 2004-03-01
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