COMPOSITION CONTAINING BORANE COMPOUND AND CONJUGATED POLYMER COMPOUND, AND ELEMENT

摘要

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 ArB1 moieties represents an arylene group or a divalent aromatic heterocyclic group; and each of three XB1 moieties represents an aromatic amino group, a monovalent aromatic heterocyclic group, an alkyl group or a hydrogen atom.) (In formula (P1), Arp1 represents an arylene group (which is different from Flup1); Flup1 represents a fluorenediyl group; Hetp1 represents a divalent aromatic heterocyclic group; Amp1 represents a divalent aromatic amine residue; and nAr, nFlu, nHet and nAm respectively represent numbers indicating the molar ratios of the Arp1, Flup1, Hetp1 and Amp1 moieties, and when nAr + nFlu + nHet + nAm = 1, 0.4 = nFlu = 1, 0 = nAr = 0.6, 0 = nHet = 0.6 and 0 = nAm = 0.6 are satisfied.)