Red Organic Electroluminescent Devices Based on Novel Furan-Contained Eu Complex as an Emitting Layer

A novel europium complex, Eu(DFP)3(phen)(DFP=1,3-Di-(2-furyl)-1,3-propanedione, phen=1,10-phenanthroline), was synthesized and used as an emitting material in organic eletroluminescent (EL) devices. The structure of fabricated EL devices is composed of ITO/TPD/Eu(DFP)3(phen)/AlLi(99:1). The double layered EL device emitted red light originating from Eu(DFP)3(phen) with a maximum luminance of 34.3 cd/m2 at 12 V and 25.7 mA/cm2.