JOURNAL ARTICLE

Synthesis and electroluminescence of blue fluorescent diarylaminofluorene derivatives for organic light-emitting diodes

Young Soo Kwon, Kum Hee Lee, Gu Young Kim, Ji Hoon Seo, Young Kwan Kim, Seung Soo Yoont
Journal of Nanoscience and Nanotechnology 2009, 9 (12): 7056-60
19908727
A series of seven diarylaminofluorene-derived fluorescent molecules demonstrating a blue emission in organic light-emitting diodes (OLEDs) were synthesized via the Horner-Wadsworth-Emmons reaction and the Suzuki-cross coupling reaction. Among the molecules, one device exhibited blue emission with a maximum luminance of 28900 cd/m2 at 12 V. A luminous efficiency of 11.5 cd/A at 20 mA/cm2 was achieved. The peak wavelength of the electroluminescence (EL) was 459.5 nm with the CIE coordinates of (x = 0.173, y = 0.281) at 8 V. The device also showed a stable color chromaticity at various voltages.

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