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High-Efficiency and Color Stable Deep-Blue Organic Light-Emitting Diodes
- Authors
- Park, Jung Sun; Seo, Ji Hoon; Koo, Ja Ryong; Seo, Bo Min; Lee, Kum Hee; Park, Jeong Keun; Yoon, Seung Soo; Kim, Young Kwan
- Issue Date
- 2010
- Publisher
- IEEE
- Citation
- INEC: 2010 3RD INTERNATIONAL NANOELECTRONICS CONFERENCE, VOLS 1 AND 2, pp.726 - +
- Journal Title
- INEC: 2010 3RD INTERNATIONAL NANOELECTRONICS CONFERENCE, VOLS 1 AND 2
- Start Page
- 726
- End Page
- +
- Abstract
- We have demonstrated high-efficiency and color stable deep-blue organic light emitting diodes (OLED) using 4,4'-Bis(9-ethyl-3-carbazovinylene)-1,1'--biphenyl doped in new blue host material as emitting layer. As host change of the doped blue emitter, blue OLED improved efficiency and exhibited color stability. The optimized blue OLED showed the peak external quantum efficiency of 4.72%, luminous efficiency of 5.12 cd/A at 0.08 mA/cm(2), and Commission Internationale de I 'Eclairage coordinates of (0.15, 0.12) at 1000cd/m(2). This result showed higher efficiency of 1.6 times than control device.
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Related Researcher
- Kim, Young Kwan
- Engineering (Applied Science)