TY - JOUR
T1 - High efficiency white organic light emitting diodes using Rubrene doped N,N′-bis-(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine as an emitting layer
AU - Huang, Hsin Hsuan
AU - Chu, Sheng Yuan
AU - Kao, Po Ching
AU - Chen, Yung Chen
N1 - Funding Information:
The financial support provided by the National Science Council of Republic of China, under grant NSC-94-2215-E-006-008. We also thank the Center for Micro-Nano Technology, National Cheng-Kung University for providing Single-Side Mask Aligner (OAI, J500).
PY - 2008/6/30
Y1 - 2008/6/30
N2 - A bright white organic light emitting diode (WOLED) was fabricated in which a blue light emitting host NPB was doped with a tiny yellow dopant Rubrene. The device structure was ITO/NPB:Rubrene/BCP/Alq3/LiF/Al, where NPB is N,N′-bis-(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine, Rubrene is 5,6,11,12-tetraphenylnaphthacene, BCP is 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline, and Alq3 is tris(8-hydroxyquinoline) aluminum. White light emission was realized in an OLED with 2 % Rubrene doping concentration. A maximum luminance of 13550 cd/m2 and a power efficiency of 2.8 lm/W (7.9 cd/A) were obtained in the device. The Commission Internationale De L'Eclairage (CIE) (1931) coordinates of the white emission are well within the white zone, which moves from (0.35, 0.37) to (0.33, 0.35) when the applied voltage is varied from 6 V to 14 V.
AB - A bright white organic light emitting diode (WOLED) was fabricated in which a blue light emitting host NPB was doped with a tiny yellow dopant Rubrene. The device structure was ITO/NPB:Rubrene/BCP/Alq3/LiF/Al, where NPB is N,N′-bis-(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine, Rubrene is 5,6,11,12-tetraphenylnaphthacene, BCP is 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline, and Alq3 is tris(8-hydroxyquinoline) aluminum. White light emission was realized in an OLED with 2 % Rubrene doping concentration. A maximum luminance of 13550 cd/m2 and a power efficiency of 2.8 lm/W (7.9 cd/A) were obtained in the device. The Commission Internationale De L'Eclairage (CIE) (1931) coordinates of the white emission are well within the white zone, which moves from (0.35, 0.37) to (0.33, 0.35) when the applied voltage is varied from 6 V to 14 V.
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U2 - 10.1016/j.tsf.2007.07.082
DO - 10.1016/j.tsf.2007.07.082
M3 - Article
AN - SCOPUS:43949102369
VL - 516
SP - 5669
EP - 5672
JO - Thin Solid Films
JF - Thin Solid Films
SN - 0040-6090
IS - 16
ER -