| abstract |
An object of the present invention is to provide a polycyclic aromatic compound with improved solubility in a solvent, film-forming property, wet-coating property, and in-plane alignment. The above problem is solved by a composition for forming a light-emitting layer comprising, as a first component, a compound selected from the group consisting of the following general formula (A-1) and the following general formula (A-2) at least one of the group consisting of the compounds represented; at least one compound having a triplet energy (E T ) of 1.8 eV to 3.0 eV as the second component; and at least one compound as the third component Organic solvents.n n n n n n n n n n In each formula, R is hydrogen, an aryl group, a heteroaryl group, a diarylamine group, a diheteroarylamine group, an arylheteroarylamine group, etc. |