Highly efficient white organic light-emitting diodes using two emitting materials for three primary colors (red, green, and blue)
- Authors
- Seo, Ji Hoon; Seo, Ji Hyun; Park, Jung Hyun; Kim, Young Kwan; Kim, Jun Ho; Hyung, Gun Woo; Lee, Kum Hee; Yoon, Seung Soo
- Issue Date
- 14-May-2007
- Publisher
- AMER INST PHYSICS
- Citation
- APPLIED PHYSICS LETTERS, v.90, no.20
- Journal Title
- APPLIED PHYSICS LETTERS
- Volume
- 90
- Number
- 20
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/23591
- DOI
- 10.1063/1.2740191
- ISSN
- 0003-6951
- Abstract
- The authors have demonstrated highly efficient white organic light-emitting diodes (WOLEDs) by using two emissive materials as a dopant, 1,4-bis[2-(7-N-diphenyamino-2-(9,9-diethyl-9H-fluoren-2-yl)) vinyl] benzene (DAF-ph) and iridium(III) bis(5-acetyl-2-phenylpyridinato-N,C2(')) acetylacetonate ((acppy)(2)Ir(acac)). It was found that the OLED fabricated in this study emitted a white color consisting of three primary colors (red, green, and blue). The luminance-voltage (L-V) characteristics of the WOLEDs showed the maximum luminance of 30 500 cd/m(2) at 14 V and the maximum luminous efficiency of 38.0 cd/A, respectively. The CIEx,y coordinates of the WOLED also showed (x=0.33, y=0.40) at 10 V. (C) 2007 American Institute of Physics.
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Collections - College of Engineering > Department of Science > 1. Journal Articles
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