Synthesis and Characterization of 9,9'-Diethyl-2-diphenylaminofluorene Derivatives as Blue Fluorescent Materials for OLEDs
Blue fluorescent materials based on 9,9'-diethyl-2-diphenylaminofluorene derivatives were synthesized and characterized. These materials were used as the blue dopant materials for the emitting layer of organic light-emitting diode devices with the following device structure: ITO/DNTPD (40 nm)/N...
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Published in | Bulletin of the Korean Chemical Society Vol. 32; no. 5; pp. 1593 - 1598 |
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Main Authors | , , , , |
Format | Journal Article |
Language | Korean |
Published |
2011
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Subjects | |
Online Access | Get full text |
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Summary: | Blue fluorescent materials based on 9,9'-diethyl-2-diphenylaminofluorene derivatives were synthesized and characterized. These materials were used as the blue dopant materials for the emitting layer of organic light-emitting diode devices with the following device structure: ITO/DNTPD (40 nm)/NPB (20 nm)/MADN: dopants (2%, 20 nm)/$Alq_3$ (40 nm)/Liq (1.0 nm)/Al. All devices exhibited highly efficient blue emission. One of these devices exhibited a maximum luminance, luminous efficiency, power efficiency and CIE x, y coordinates of 8400 $cd/m^2$, 8.10 cd/A at 20 $mA/cm^2$, 3.36 lm/W at 20 $mA/cm^2$ and (0.151, 0.159), respectively. A deep blue device with CIE coordinates of (0.152, 0.139) showed the maximum luminance, luminous efficiency and power efficiency of 8630 $cd/m^2$, 6.31 cd/A at 20$mA/cm^2$ and 2.62 lm/W at 20 $mA/cm^2$, respectively. |
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Bibliography: | KISTI1.1003/JNL.JAKO201120956422469 |
ISSN: | 0253-2964 1229-5949 |