Material for organic electroluminescence device and organic electroluminescence device

An organic electroluminescence device which comprises a light emitting layer which is disposed between a cathode and an anode and comprises a first host material, a second host material and a light emitting material,

• wherein
• the first host material is represented by formula (A):
• wherein
• each of A1 and A2 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms or a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms;
• A3 represents a substituted or unsubstituted divalent aromatic hydrocarbon group having 6 to 30 ring carbon atoms or a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms
• m represents an integer of 0 to 3;
• each of X1 to X8 and Y1 to Y8 independently represents N or CRa;
• each of Ra independently represents a hydrogen atom, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted silyl group, a halogen atom, or a cyano group, provided that when two or more Ra groups exist, the Ra groups may be the same or different and one of X5 to X8 and one of Y1 to Y4 are bonded to each other via A3;
• and
• the formula (A) satisfies at least one of the following requirements (i) to (v):
• (i) at least one of A1 and A2 represents a cyano-substituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms or a cyano-substituted heterocyclic group having 5 to 30 ring atoms;
• (ii) at least one of X1 to X4 and Y5 to Y8 represents CRa, and at least one of Ra in X1 to X4 and Y5 to Y8 represents a cyano-substituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms or a cyano-substituted heterocyclic group having 5 to 30 ring atoms;
• (iii) m represents an integer of 1 to 3 and at least one of A3 represents a cyano-substituted divalent aromatic hydrocarbon group having 6 to 30 ring carbon atoms or a cyano-substituted divalent heterocyclic group having 5 to 30 ring atoms;
• (iv) at least one of X5 to X8 and Y1 to Y4 represents CRa, and at least one of Ra in X5 to X8 and Y1 to Y8 represents a cyano-substituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms or a cyano-substituted heterocyclic group having 5 to 30 ring atoms;
• and
• (v) at least one of X1 to X8 and Y1 to Y8 represents C—CN;
• and
• the second host material is represented by formula (1):
• wherein
• Z1 represents a ring structure fused to a side a and represented by formula (1-1) or (1-2), and Z2 represents a ring structure fused to a side b and represented by formula (1-1) or (1-2), provided that at least one of Z1 and Z2 is represented by formula (1-1):
• in formula (1-1),
• a side c is fused to the side a or b of formula (1);
• in formula (1-2),
• any one of sides d, e and f is fused to the side a or b of formula (1);
• in formulae (1-1) and (1-2),
• X11 represents a sulfur atom, an oxygen atom, N—R19, or C(R20)(R21);
• each of R11 to R21 independently represents a hydrogen atom, a heavy hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, a substituted or unsubstituted heterocyclic group having 5 to 30 ring atoms, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 30 carbon atoms, a substituted or unsubstituted alkylsilyl group having 3 to 30 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 30 ring carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted aryloxy group having 6 to 30 ring carbon atoms, provided that adjacent groups of R11 to R21 may be bonded to each other to forma a ring;
• M1 represent a substituted or unsubstituted nitrogen-containing aromatic heteroring having 5 to 30 ring atoms;
• L1 represents a single bond, a substituted or unsubstituted divalent aromatic hydrocarbon group having 6 to 30 ring carbon atoms, a substituted or unsubstituted divalent heterocyclic group having 5 to 30 ring atoms, a cycloalkylene group having 5 to 30 ring atoms, or a group in which the preceding groups are directly linked to each other;
• and
• k represents 1 or 2.