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Efficient, color stable white organic light-emitting diode based on high energy level yellowish-green dopants
- Authors
- Park, Young-Seo; Kang, Jae-Wook; Kang, Dong Min; Park, Jong-Won; Kim, Yoon-Hi; Kwon, Soon-Ki; Kim, Jang-Joo
- Issue Date
- May-2008
- Publisher
- WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
- Citation
- Advanced Materials, v.20, no.10, pp 1957 - +
- Indexed
- SCIE
SCOPUS
- Journal Title
- Advanced Materials
- Volume
- 20
- Number
- 10
- Start Page
- 1957
- End Page
- +
- ISSN
- 0935-9648
1521-4095
- Abstract
- White OLEDs with high efficiency high color stability are developed by using high energy level dopants. The white OLEDs showed high external quantum efficiency 11.7% and remarkable color stability with the variation of CIE chromaticity coordinates less than (0.02, 0.01) between 10cd m(-2) and 5000 cd m(-2). Moreover roll-off of efficiency was low and the CRI value was over 87.
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