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Phosphorescent Iridium Complexes for OLEDs Based on 1-Phenylpyrazole Ligands with Fluorine and Methyl Moieties
- Authors
- Yoon, Seung Soo; Song, Ji Young; Na, Eun Jae; Lee, Kum Hee; Kim, Seong Kyu; Lim, Dong Whan; Lee, Seok Jae; Kim, Young Kwan
- Issue Date
- 20-May-2013
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Phosphorescence; Iridium complex; Phenylpyrazole ligand; White OLED
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.34, no.5, pp.1366 - 1370
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 34
- Number
- 5
- Start Page
- 1366
- End Page
- 1370
- ISSN
- 0253-2964
- Abstract
- A series of phosphorescent iridium(III) complexes 1-4 based on phenylpyrazole were synthesized and their photophysical properties were investigated. To evaluate their electroluminescent properties, OLED devices with the structure of ITO/NPB/mCP: 8% Iridium complexes (1-4)/TPBi/Liq/Al were fabricated. Among those, the device with 3 showed the most efficient white emission with maximum luminance of 100.6 cd/m(2) at 15 V, maximum luminous efficiency of 1.52 cd/A, power efficiency of 0.71 lm/W, external quantum efficiency of 0.59%, and CIE coordinates of (0.35, 0.40) at 15.0 V, respectively.
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Collections - College of Engineering > Department of Science > 1. Journal Articles
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Related Researcher
- Kim, Young Kwan
- Engineering (Applied Science)