| 主权项 |
1. An organic electroluminescent material-containing solution, comprising:
an organic electroluminescent material; a solvent, and a viscosity control reagent, the viscosity control reagent is selected from the group consisting of propanediol, 1,2-butanediol and a mixture thereof; wherein the organic electroluminescent material at least comprises a host and a dopant, the host is an anthracene derivative having a molecular weight of 4000 or less, the anthracene derivative being represented by a formula (2) or a formula (4) as follows, the dopant is a styrylamine derivative represented by any one of formulae (d-1) to (d-11) below, and the solvent is a cyclic ketone compound represented by a formula (1) as follows, the host of 0.5 mass % or more being soluble in the solvent, wherein A represents a substituted or unsubstituted cyclic hydrocarbon group having 5 to 10 members or a substituted or unsubstituted group for forming a nitrogen-containing heterocycle having 5 to 10 members, wherein formula (2) is wherein Ar represents an unsubstituted fused aromatic group having 10 to 50 carbon atoms forming the aromatic ring; Ar′ represents an unsubstituted aromatic group having 6 to 50 carbon atoms forming the aromatic ring; X3 represents an unsubstituted aromatic group having 6 to 50 carbon atoms forming the aromatic ring, unsubstituted aromatic heterocyclic group having 5 to 50 carbon atoms forming the aromatic ring, an unsubstituted alkyl group having 1 to 50 carbon atoms, an unsubstituted alkoxy group having 1 to 50 carbon atoms, an unsubstituted aralkyl group having 6 to 50 carbon atoms, an unsubstituted aryloxy group having 5 to 50 carbon atoms, an unsubstituted arylthio group having 5 to 50 carbon atoms, an unsubstituted alkoxycarbonyl group having 1 to 50 carbon atoms, a carboxyl group, a halogen group, a cyano group, a nitro group or a hydroxyl group; a and b are 0 and c is an integer of 0 to 4, a plurality of X3 being allowed to be mutually the same or different when c is 2 or more; n is an integer from 1 to 3; and m is 0 or 1, wherein formula (4) is wherein Ar1 and Ar2 each independently represent an unsubstituted aromatic ring group having 6 to 50 carbon atoms forming the aromatic ring; m and n are each integers of 1 to 4, Ar1 and Ar2 are mutually different when: m and n are both equal to 1; and positions at which Ar1 and Ar2 are respectively bonded to benzene rings are symmetric, m and n being mutually different when m or n is an integer of 2 to 4; R1 to R8 represent a hydrogen atom, and R9 and R10 each independently represent a hydrogen atom, an unsubstituted aromatic group having 6 to 50 carbon atoms forming the aromatic ring, an unsubstituted aromatic heterocyclic group having 5 to 50 carbon atoms forming the aromatic ring, an unsubstituted alkyl group having 1 to 50 carbon atoms, an unsubstituted cycloalkyl group, an unsubstituted alkoxy group having 1 to 50 carbon atoms, an unsubstituted aralkyl group having 6 to 50 carbon atoms, an unsubstituted aryloxy group having 5 to 50 atoms forming the ring, an unsubstituted arylthio group having 5 to 50 atoms forming the ring, an unsubstituted alkoxycarbonyl group having 1 to 50 carbon atoms, an unsubstituted silyl group, a carboxyl group, a halogen group, a cyano group, a nitro group or a hydroxyl group; andwherein formulae (d-1) to (d-11) are |
