Organic light-emitting device

An organic light-emitting device, comprising:

• a pair of electrodes composed of an anode and a cathode;
• and
• a light-emitting organic compound layer interposed between the pair of electrodes,
• wherein the light-emitting organic compound layer contains a light-emitting compound represented by the following general formula [1]:
• where Ar1 and Ar2 each represent a group selected from the group consisting of a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group, Ar1 and Ar2 may be the same or different from each other, and Ar1 and Ar2 may be bonded to each other to form a ring,
• R1, R2, and R3 each represent a group selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group, and R1, R2, and R3 may be the same or different from one another,
• X represents a group selected from the group consisting of a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted sulfide group, a substituted or unsubstituted silyl group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group, and X's may be the same or different from each other, and
• a represents an integer of 0 or more to 8 or less.