Composition for Light-Emitting Device

A composition for evaporation comprising:

• a first organic compound comprising a furodiazine skeleton or a thienodiazine skeleton, which is represented by any one of General Formula (G1), General Formula (G2), and General Formula (G3);
• and
• a second organic compound that is an aromatic amine compound,
• wherein Q represents oxygen or sulfur,
• wherein Ar1 represents any one of substituted or unsubstituted benzene, substituted or unsubstituted naphthalene, substituted or unsubstituted phenanthrene, and substituted or unsubstituted chrysene,
• wherein each of R1 to R6 independently represents hydrogen or a group having 1 to 100 total carbon atoms,
• wherein at least one of R1 and R2, at least one of R3 and R4, or at least one of R5 and R6 is bonded to any one of a pyrrole ring structure, a furan ring structure, and a thiophene ring structure through a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenylene group, and
• wherein the first organic compound and the second organic compound are mixed in the composition for evaporation.

A composition for evaporation comprising:

• a first organic compound comprising a benzofurodiazine skeleton, which is represented by any one of General Formula (G1-1), General Formula (G2-1), and General Formula (G3-1);
• and
• a second organic compound that is an aromatic amine compound,
• wherein each of Ar2, Ar3, Ar4, and Ar5 independently represents a substituted or unsubstituted aromatic hydrocarbon ring, a substituent of the aromatic hydrocarbon ring being any one of an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a monocyclic saturated hydrocarbon group having 5 to 7 carbon atoms, a polycyclic saturated hydrocarbon group having 7 to 10 carbon atoms, and a cyano group,
• wherein the number of carbon atoms included in the aromatic hydrocarbon ring is 6 to 25,
• wherein m and n are each 0 or 1,
• wherein each of R1 to R6 independently represents hydrogen or a group having 1 to 100 total carbon atoms,
• wherein at least one of R1 and R2, at least one of R3 and R4, or at least one of R5 and R6 is bonded to any one of a pyrrole ring structure, a furan ring structure, and a thiophene ring structure through a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenylene group, and
• wherein the first organic compound and the second organic compound are mixed in the composition for evaporation.