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OLED Light Outcoupling Enhancement by Extracting Surface Plasmon Polariton Energy
- Authors
- Cho, Hyun-Jun; Lee, Ho-Nyeon
- Issue Date
- 22-Sep-2014
- Publisher
- Taylor & Francis
- Keywords
- surface plasmon polariton (SPP); outcoupling; multi-cathode; Light-emitting diode
- Citation
- Molecular Crystals and Liquid Crystals, v.601, no.1, pp 159 - 164
- Pages
- 6
- Journal Title
- Molecular Crystals and Liquid Crystals
- Volume
- 601
- Number
- 1
- Start Page
- 159
- End Page
- 164
- ISSN
- 1542-1406
1543-5318
- Abstract
- The extraction method of surface plasmon polariton (SPP) energy was investigated to assess its ability to improve the outcoupling efficiency of organic light-emitting diodes (OLEDs). A multi-cathode OLED (MC-OLED) structure was used; this structure was composed of a semitransparent cathode (Ag), a high refractive index dielectric layer (WO3), and a reflector (Ag). The dependence of the current efficiency of MC-OLEDs on the thicknesses of the Ag cathode and the WO3 dielectric was examined, and optimal thicknesses were identified. Current efficiency can be increased by 20% more than conventional OLEDs by using a 50-nm Ag cathode and a 100-nm WO3 dielectric.
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Related Researcher
- Lee, Ho nyeon
- College of Engineering (Department of Display and Electronic Information Engineering)