| abstract |
Provided is an organic material which enables the production of an organic electroluminescent element that has long luminance half life. A composition which contains a borane compound represented by formula (B1) and a conjugated polymer compound represented by formula (P1). (In formula (B1), each of three Ar B1 moieties represents an arylene group or a divalent aromatic heterocyclic group; and each of three X B1 moieties represents an aromatic amino group, a monovalent aromatic heterocyclic group, an alkyl group or a hydrogen atom.) (In formula (P1), Ar p1 represents an arylene group (which is different from Flu p1 ); Flu p1 represents a fluorenediyl group; Het p1 represents a divalent aromatic heterocyclic group; Am p1 represents a divalent aromatic amine residue; and n Ar , n Flu , n Het and n Am respectively represent numbers indicating the molar ratios of the Ar p1 , Flu p1 , Het p1 and Am p1 moieties, and when n Ar + n Flu + n Het + n Am = 1, 0.4 ≤ n Flu ≤ 1, 0 ≤ n Ar ≤ 0.6, 0 ≤ n Het ≤ 0.6 and 0 ≤ n Am ≤ 0.6 are satisfied.) |