Phosphorescent Iridium Complexes for OLEDs Based on 1-Phenylpyrazole Ligands with Fluorine and Methyl Moieties 


Vol. 34,  No. 5, pp. 1366-1370, May  2013
10.5012/bkcs.2013.34.5.1366


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  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/m2 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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  Cite this article

[IEEE Style]

S. S. Yoon, J. Y. Song, E. J. Na, K. H. Lee, S. K. Kim, D. W. Lim, S. J. Lee, Y. K. Kim, "Phosphorescent Iridium Complexes for OLEDs Based on 1-Phenylpyrazole Ligands with Fluorine and Methyl Moieties," Bulletin of the Korean Chemical Society, vol. 34, no. 5, pp. 1366-1370, 2013. DOI: 10.5012/bkcs.2013.34.5.1366.

[ACM Style]

Seung Soo Yoon, Ji Young Song, Eun Jae Na, Kum Hee Lee, Seong Kyu Kim, Dong Whan Lim, Seok Jae Lee, and Young Kwan Kim. 2013. Phosphorescent Iridium Complexes for OLEDs Based on 1-Phenylpyrazole Ligands with Fluorine and Methyl Moieties. Bulletin of the Korean Chemical Society, 34, 5, (2013), 1366-1370. DOI: 10.5012/bkcs.2013.34.5.1366.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949