Patent ID: 6914269

Claim:
An electron injection composition comprising: a material represented by general formula 1; and at least one of an alkali metal, an alkali earth metal, and a transition metal, wherein a molar ratio of the material represented by general formula 1 to said one of the alkali metal, the alkali earth metal, and the transition metal is from 1:0.1 to 1:10, wherein each of X 1 and X 2 represents: wherein each of R 1 to R 8 represents hydrogen, halogen, a cyano group, an alkyl group having 1 to 10 carbon atoms, a haloalkyl group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group.