Title :
Diarylamino-substituted stilbene derivatives for blue organic light-emitting diodes
Author :
Kim, Seul Ong ; Lee, Kum Hee ; Kwon, Hyuck Joo ; Kim, Young Kwan ; Yoon, Seung Soo
Author_Institution :
Dept. of Chem., Sungkyunkwan Univ., Suwon, South Korea
Abstract :
A series of bis(diarylamino)stilbene derivatives with various aromatic system were synthesized via the Buchwald-Hartwig cross-coupling reaction. Multilayer devices with the configuration of ITO / NPB (700 ¿) / ADN: blue dopants 1-5 (300 ¿: 2 %) / Alq3 (300 ¿) / Liq (10 ¿) / Al were fabricated. Among the molecules, the devices using 4,4´-bis (9,9-diethylfluoren-2-yl-3,5-di-tertbutylphenylamino) stilbene (4) as dopant exhibited blue emission with the luminance of 12590 cd/m2, the luminous efficiency of 9.10 cd/A at 20 mA/cm2, the power efficiency of 3.73 lm/W at 20 mA/cm2, and the CIE coordinates of (0.155, 0.195) at 12.0 V.
Keywords :
brightness; organic compounds; organic light emitting diodes; 4,4´-bis (9,9-diethylfluoren-2-yl-3,5-di-tertbutylphenylamino) stilbene; Buchwald-Hartwig cross-coupling reaction; aromatic system; bis(diarylamino)stilbene derivatives; blue emission; blue organic light emitting diodes; diarylamino-substituted stilbene derivatives; luminance; multilayer devices; voltage 12.0 V; Avatars; Chemistry; Conducting materials; Energy states; Flat panel displays; Indium tin oxide; Mass spectroscopy; Nuclear magnetic resonance; Organic light emitting diodes; Solvents;
Conference_Titel :
Nanoelectronics Conference (INEC), 2010 3rd International
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-3543-2
Electronic_ISBN :
978-1-4244-3544-9
DOI :
10.1109/INEC.2010.5424638
