Green electroluminescence from azafluoranthene derivatives in polymer based electroluminescent devices

Paper demonstrates a series of novel electroluminescent devices (OLEDs) with poly (N-vinylcarbazole) active emitting layer doped by the azafluoranthene dyes. Measured steady state electroluminescence spectra, luminance-voltage and luminance-current characteristics provide basic characterization of the designed OLEDs. All the devices exhibit sharp green electroluminescence with the emission maximum being rather weakly dependent on the type of the fluorescent dopant. The obtained results show that a series of recently synthesized azafluoranthene dyes may be considered as efficient green fluorescent emitters for electroluminescent applications.

► Electroluminescent devices (OLEDs) based on PVK doped with azafluoranthenes.
► Electroluminescence spectra of PVK- azafluoranthenes based OLEDs.
► Luminance-voltage and luminance-current characteristics.
► Azafluoranthenes as sharp green emitters for optoelectronic applications.