Patent ID: 7919771

Claim:
A composition for forming an electron transport layer, comprising: Al 2 O 3 ; a soluble titanium precursor comprising at least one selected from the group consisting of compounds represented by Formulae (1) through (4) and titanate chelate: Ti(OR) 4 (1) where R is each independently CH 3 CO—CH═C(CH 3 )—, C 2 H 5 OCO—CH═C(CH 3 )—, —(CH 3 )CH—COO − NH 4 + , —COR′, or —CO(C 6 H 4 )COOR″ where R′ is a substituted or unsubstituted C 1 -C 10 alkyl group, and R″ is a substituted or unsubstituted C 1 -C 10 alkyl group; where R is a substituted or unsubstituted C 1 -C 10 alkyl group, and R′ is a substituted or unsubstituted C 1 -C 10 alkyl group; where R is a substituted or unsubstituted C 1 -C 10 alkyl group; where R 1 is a substituted or unsubstituted C 1 -C 10 alkyl group; and a solvent.