Abstract

We have demonstrated a short fluorescence lifetime of the substituted phenyl/vinyl compound, 1,4-bis[2-[4-[N,N-di(p-tolyl)amino]phenyl]vinyl]benzene (DSB). The fluorescence lifetime of the 0.5 mol.% DSB-doped 4,4-bis(9-carbazolyl)biphenyl film is 1.2ns, which is desirable for organic light-emitting diode (OLED) light sources for optical interconnect applications. We have also examined frequency dependences on the electroluminescence (EL) intensity of the OLED and the photoluminescence (PL) intensity of the DSB film. The 3dB cutoff frequency of the EL intensity is about 3MHz for the optimized device, and the 3dB cutoff frequency of the PL intensity is about 160MHz for the optically pumping DSB film.

© 2007 Optical Society of America

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