A highly pure red luminescent europium(III) complex with a Scniff base zinc(II) complex as a neutral ligand

摘要

A highly pure red luminescent heterobimetallic complex [EuZnL(tta)2(μ-tfa)] (L = N,N'-bis(salicylidene)-2,3-propanediamine, tta = 2-thenoyltrifluoroacetonate, tfa = trifluoroacetate) was synthesized. The EL device with this complex exhibits an inspiring current efficiency of 3.7 cd A~(-1) at a brightness of 300 cd m~(-2) and gives a maximum Eu(III)-based pure red emitting luminance of 1982.5 cd m~(-2) at 13.8 V.