Dibenzoanthracene compound and organic light emitting device having the same

An electrophotographic image forming device comprising:

• a photosensitive member;
• and
• an exposure light source,
• wherein the exposure light source comprises an organic light emitting device to expose the photosensitive member, and
• wherein the organic light emitting device comprises an anode, a cathode and an organic light-emitting layer,
• wherein the organic light-emitting layer comprises a dibenzoanthracene compound that emits light and that is represented by the following structural formula (I):
• wherein both R1 and R2 represent a substituted or unsubstituted aryl group with the proviso that the substituted or unsubstituted aryl group does not contain a nitrogen atom, where the aryl group is any one of a phenyl group, a naphthyl group, a fluorenyl group, a phenanthryl group, and a perylenyl group;
• wherein R3 to R14 each represent a hydrogen atom or a substituent;
• and
• wherein the substituent represented by any one of R3 to R14 comprises any one of a straight or branched alkyl group in which a hydrogen atom may be substituted by a fluorine atom, a substituted or unsubstituted aryl group, where the aryl group is any one of a phenyl group, a naphthyl group, a fluorenyl group, a phenanthryl group, and a perylenyl group, a substituted or unsubstituted heterocyclic group, a substituted amino group, and a halogen atom.