Determination of interface dipole energy at the interface of ruthenium-oxide-coated anode with organic material using synchrotron radiation photoemission spectroscopy
SCIE
SCOPUS
- Title
- Determination of interface dipole energy at the interface of ruthenium-oxide-coated anode with organic material using synchrotron radiation photoemission spectroscopy
- Authors
- Kim, SY; Baik, JM; Lee, JL
- Date Issued
- 2005-01
- Publisher
- ELECTROCHEMICAL SOC INC
- Abstract
- 4,4'-Bis[N-1-naphthyl)-N-phenylamino]biphenyl (alpha-NPD) was deposited in situ on both ruthenium oxide-coated indium-tin oxide (RuOx-ITO) and O-2-plasma-treated ITO (O-2-ITO) anodes, and their interface dipole energies were quantitatively determined using synchrotron radiation photoemission spectroscopy. The dipole energy of RuOx-ITO was lower by 0.2 eV than that of O-2-ITO even though RuOx-ITO had a higher work function. Secondary electron emission spectra after deposition of alpha-NPD on anodes revealed that the work function of RuOx-ITO is higher by 0.2 eV than that of O-2-ITO, resulting in a decrease of the turn-on voltage via reduction of hole injection barrier. (c) 2005 The Electrochemical Society. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/10111
- DOI
- 10.1149/1.1996510
- ISSN
- 1099-0062
- Article Type
- Article
- Citation
- ELECTROCHEMICAL AND SOLID STATE LETTERS, vol. 8, no. 9, page. H79 - H81, 2005-01
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