| 摘要 |
PROBLEM TO BE SOLVED: To obtain a light-emitting material for an organic EL element having a high emission luminance and a long emission lifetime, and the organic EL element using the same. SOLUTION: The light-emitting material is expressed by the formula [1]: (R<SP>1</SP>-R<SP>2</SP>)n [in the formula [1], R<SP>1</SP>is the formula [2]: Ar<SP>3</SP>-R<SP>3</SP>-R<SP>4</SP>-R<SP>5</SP>-Ar<SP>4</SP>; R<SP>2</SP>is O, S, Se, or the like; (n) is an integer of at least 1; (in the formula [2], Ar<SP>3</SP>and Ar<SP>4</SP>are each independently a bivalent aryl group or heteroaryl group; R4 is vinyl group or an aryl group- or heteroaryl group-containing conjugated organic residue having a weight average molecular weight of 1,000-1,000,000; R<SP>3</SP>and R<SP>5</SP>are each independently amino group; each of the vinyl group, aryl group, heteroaryl group and amino group may have a substituent)]. COPYRIGHT: (C)2004,JPO
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