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Journal Article
Enhanced and balanced efficiency of white bi-directional organic light-emitting diodes
- Authors
- Jonghee Lee, Hyunsu Cho, Tae-Wook Koh, Changhun Yun, Simone Hofmann, Jae-Hyun Lee, Yong Hyun Kim, Bjorn Lussem, Jeong-Ik Lee, Karl Leo, Malte C. Gather, Seunghyup Yoo
- Issue Date
- 2013-11
- Citation
- Optics Express, v.21, no.23, pp.28040-28047
- ISSN
- 1094-4087
- Publisher
- Optical Society of America(OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- We report on the characteristics of enhanced and balanced whitelight emission from bi-directional organic light-emitting diodes (BiOLEDs) enabled by the introduction of micro-cavity effects. The insertion of an additional metal layer between the indium tin oxide anode and the hole transporting layer results in similar light output of our BiOLEDs in both top and bottom direction and in reduced distortion of the electroluminescence spectrum. Furthermore, we find that by utilizing MC effects, the overall current efficiency can be improved by 26.2% compared to that of a conventional device. © 2013 Optical Society of America.
- KSP Keywords
- Electroluminescence spectrum, Indium Tin Oxide(ITO), Tin oxide anode, bi-directional, current efficiency, hole transporting layer, light emitting diodes(LED), light output, metal layer, micro-cavity, organic light emitting diode(OLED)
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
