New platinum complexes for hybrid white organic light-emitting diodes

摘要

A new series of mixed ligand platinum(II) complexes with a formula of FPtXND, where XND = 4-hydroxy-1,5-naphthyridine derivates and F = 2-(2,4-difluorophenyl)pyridine, were newly synthesized, and their photophysical properties were examined. Single crystal X-ray diffraction of FPtOPhND were determined to elucidate their variation of solid state phosphorescence and electroluminescence. Organic hole transporting as well as blue light-emitting NPB (1-naphthylphenylbiphenyl diamine) or 4P-NPD (1-naphthylphenylquaterphenyl diamine) was employed in the platinum complex-based hybrid white organic light emitting diodes (WOLEDs) with a simplified device configuration of ITO/4P-NPD or NPB/CBP:FPtXND/TPBI/LiF/Al or ITO/4P-NPD /4P-NPD:FPtXND/TPBI/LiF/Al.