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Performance Improvement of the Organic Light-Emitting Diodes by Using a LiF/Pyromellitic Dianhydride Stacked Cathode Interfacial Layer
- Authors
- Nam, E[Nam, Eunkyoung]; Moon, MR[Moon, Mi Ran]; Jung, D[Jung, Donggeun]; Lee, S[Lee, Sungwoo]; Chae, H[Chae, Heeyeop]; Cho, JH[Cho, Jae Hyun]; Yi, J[Yi, Junsin]; Park, SH[Park, Sang Han]; Cho, MH[Cho, Mann-Ho]; Kim, H[Kim, Hyoungsub]
- Issue Date
- 2010
- Publisher
- ELECTROCHEMICAL SOC INC
- Citation
- JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v.157, no.12, pp.J425 - J428
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF THE ELECTROCHEMICAL SOCIETY
- Volume
- 157
- Number
- 12
- Start Page
- J425
- End Page
- J428
- ISSN
- 0013-4651
- Abstract
- A bilayered cathode interfacial structure consisting of lithium fluoride (LiF) and pyromellitic dianhydride (PMDA) was used between Al and tris-(8-hydroxyquinoline) aluminum (Alq(3)) in the organic light-emitting diode (OLED), and a better performance enhancement compared to the OLED with a single LiF interfacial layer was achieved by using an optimal thickness combination of the bilayered interfacial structure (0.3 nm LiF/0.7 nm PMDA). The bilayered interfacial stucture with an optimum thickness combination decreased the parallel bulk resistance and lowered the electron injection barrier height between Al and Alq(3) according to the impedance and in situ ultraviolet photoelectron spectroscopy measurements, respectively. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3497351] All rights reserved.
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- Engineering > School of Advanced Materials Science and Engineering > 1. Journal Articles
- Engineering > School of Chemical Engineering > 1. Journal Articles
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Related Researcher
- KIM, HYOUNG SUB
- Engineering (Advanced Materials Science and Engineering)