Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1268283 | Organic Electronics | 2009 | 4 Pages |
Abstract
Deep blue phosphorescent organic light-emitting diodes have been developed by using tris((3,5-difluoro-4-cyanophenyl)pyridine) iridium (FCNIr) as a blue phosphorescent dopant. The FCNIr showed a wide triplet bandgap of 2.8 eV for deep blue emission due to a strong electron withdrawing CN substituent in addition to F unit. Doping of the FCNIr in N,N’-dicarbazolyl-3,5-benzene gave a high quantum efficiency of 9.2% with a CIE color coordinate of (0.15, 0.16).
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Physical Sciences and Engineering
Chemistry
Chemistry (General)
Authors
Kyoung Soo Yook, Soon Ok Jeon, Chul Woong Joo, Jun Yeob Lee,