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Phosphorescence White Organic Light-Emitting Diodes With Single Emitting Layer Based on Isoquinolinefluorene-Carbazole Containing Host

Ja Ryong Koo, Seok Jae Lee, Gun Woo Hyung, Bo Young Kim, Hyun Su Shin, Kum Hee Lee, Seung Soo Yoon, Woo Young Kim, Young Kwan Kim

J Nanosci Nanotechnol. 2013 Mar;13(3):1789-93.

PMID: 23755592

Abstract:

We have demonstrated a stable phosphorescent white organic light-emitting diodes (WOLEDs) using an orange emitter, Bis(5-benzoyl-2-(4-fluorophenyl)pyridinato-C,N) iridium(III)acetylacetonate [(Bz4Fppy)2Ir(III)acac] doped into a newly synthesized blue host material, 2-(carbazol-9-yl)-7-(isoquinolin-1-yl)-9,9-diethylfluorene (CzFliq). When 1 wt.% (Bz4Fppy)2Ir(III)acac was doped into emitting layer, it was realized an improved EL performance and a pure white color in the OLED. The optimum WOLED showed maximum values as a luminous efficiency of 10.14 cd/A, a power efficiency of 10.24 Im/W, a peak external quantum efficiency 4.07%, and Commission Internationale de L'Eclairage coordinates of (0.34, 0.39) at 8 V.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP15635877 Iridium(III) acetylacetonate Iridium(III) acetylacetonate 15635-87-7 Price
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