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Color Stable White Organic Light-Emitting Diodes Having High Color Rendering Index Utilized by Simple-Hybrid Structures
- Authors
- Park, Young Wook; Kim, Young Min; Choi, Jin Hwan; Park, Tae Hyun; Choi, Hyun Ju; Cho, Min Ju; Lee, U. Ra; Choi, Dong Hoon; Ju, Byeong-Kwon
- Issue Date
- 2010
- Publisher
- ELECTROCHEMICAL SOC INC
- Citation
- ELECTROCHEMICAL AND SOLID STATE LETTERS, v.13, no.7, pp.J81 - J84
- Indexed
- SCIE
SCOPUS
- Journal Title
- ELECTROCHEMICAL AND SOLID STATE LETTERS
- Volume
- 13
- Number
- 7
- Start Page
- J81
- End Page
- J84
- ISSN
- 1099-0062
- Abstract
- This article reports the highly color stable white organic light-emitting diodes (WOLEDs) having a high color rendering index (CRI) utilized by simple-hybrid structures involving emitting layers (EMLs) of phosphorescent yellow polymer and a thermally deposited fluorescent blue. To derive the yellow EML, a highly soluble red dopant is developed and used with a highly soluble green co-dopant. Using a simple-hybrid structure, the emission tuned WOLEDs are successfully demonstrated with a high CRI of 93 and a highly color stable CIE 1931 coordinate over the full driving voltages from (0.33 +/- 0.00, 0.35 +/- 0.01) to (0.42 +/- 0.01, 0.44 +/- 0.01) depending on the blue EML host. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3387673] All rights reserved.
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