Organic electroluminecence device

An organic electroluminescence device comprising a cathode, an anode, and one or more organic thin film layers that are provided between the cathode and the anode,

• wherein the one or more organic thin film layers comprises at least an emitting layer, and
• at least one organic thin film layer included in the one or more organic thin film layers comprises a compound represented by a formula (1) and a compound represented by a formula (5),
• wherein Ar is a substituted or unsubstituted aryl group including 6 to 30 ring carbon atoms with the proviso that Ar is not a substituted or unsubstituted fluorenyl group,
• Ra are independently a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, or a substituted or unsubstituted cycloalkyl group including 3 to 15 carbon atoms,
• Rb1 to Rb4 are independently a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms, a substituted or unsubstituted cycloalkyl group including 3 to 15 carbon atoms, a substituted or unsubstituted alkylsilyl group including 1 to 45 carbon atoms, a substituted or unsubstituted arylsilyl group including 6 to 50 carbon atoms, a substituted or unsubstituted alkoxy group including 1 to 15 carbon atoms, a substituted or unsubstituted aryloxy group including 6 to 30 ring carbon atoms, a substituted or unsubstituted alkylthio group including 1 to 15 carbon atoms, a substituted or unsubstituted arylthio group including 6 to 30 ring carbon atoms, a substituted or unsubstituted arylamino group including 6 to 30 ring carbon atoms, a substituted or unsubstituted aryl group including 6 to 30 ring carbon atoms, or a substituted or unsubstituted heteroaryl group including 3 to 30 ring atoms,
• Rc1 to Rc10 are independently a hydrogen atom, a halogen atom, a cyano group, a substituted or unsubstituted alkyl group including 1 to 15 carbon atoms,
• a substituted or unsubstituted cycloalkyl group including 3 to 15 carbon atoms,
• a substituted or unsubstituted alkylsilyl group including 1 to 45 carbon atoms,
• a substituted or unsubstituted arylsilyl group including 6 to 50 carbon atoms,
• a substituted or unsubstituted alkoxy group including 1 to 15 carbon atoms,
• a substituted or unsubstituted aryloxy group including 6 to 30 ring carbon atoms,
• a substituted or unsubstituted alkylthio group including 1 to 15 carbon atoms,
• a substituted or unsubstituted arylthio group including 6 to 30 ring carbon atoms,
• a substituted or unsubstituted arylamino group including 6 to 30 ring carbon atoms, a substituted or unsubstituted aryl group including 6 to 30 ring carbon atoms,
• a substituted or unsubstituted heteroaryl group including 3 to 30 ring atoms, or
• a single bond that is bonded to either nitrogen atom,
• * is a bonding position at which any of Rc1 to Rc10 is bonded to either nitrogen atom,
• x is an integer from 0 to 3,
• y is an integer from 0 to 4,
• z is independently an integer from 0 to 5,
• a plurality of Rb1 are either identical or different when x is an integer equal to or larger than 2, a plurality of Rb2 are either identical or different when y is an integer equal to or larger than 2, and a plurality of Rb3 or Rb4 are either identical or different when z is an integer equal to or larger than 2,
• when Ra is substituted with a substituent, the substituent is an alkyl group including 1 to 10 carbon atoms, a cycloalkyl group including 3 to 10 ring carbon atoms, an alkylsilyl group including 3 to 30 carbon atoms, an arylsilyl group including 6 to 60 carbon atoms, an alkoxy group including 1 to 10 carbon atoms, an aryloxy group including 6 to 20 ring carbon atoms, an alkylthio group including 1 to 10 carbon atoms, an arylthiol group including 6 to 20 ring carbon atoms, an arylamino group including 12 to 30 ring carbon atoms, an aryl group including 6 to 20 ring carbon atoms, or a heteroaryl group including 5 to 20 ring atoms,
• wherein Ar11 is a substituted or unsubstituted monocyclic group including 5 to 50 ring atoms, or a substituted or unsubstituted fused aromatic ring group including 8 to 50 ring atoms,
• Ar12 is a substituted or unsubstituted fused heterocyclic ring group including 8 to 50 ring atoms, a monocyclic group including 5 to 50 ring atoms substituted with a substituted or unsubstituted fused heterocyclic ring group including 8 to 50 ring atoms, or a fused aromatic ring group including 8 to 50 ring atoms substituted with a substituted or unsubstituted fused heterocyclic ring group including 8 to 50 ring atoms, and
• R101 to R108 are independently an atom or a group selected from a group consisting of a hydrogen atom,
• a substituted or unsubstituted monocyclic group including 5 to 50 ring atoms,
• a substituted or unsubstituted fused ring group including 8 to 50 ring atoms,
• a group formed by a combination of the monocyclic group and the fused ring group,
• a substituted or unsubstituted alkyl group including 1 to 50 carbon atoms,
• a substituted or unsubstituted cycloalkyl group including 3 to 50 ring carbon atoms,
• a substituted or unsubstituted alkoxy group including 1 to 50 carbon atoms,
• a substituted or unsubstituted aralkyl group including 7 to 50 carbon atoms,
• a substituted or unsubstituted aryloxy group including 6 to 50 ring carbon atoms,
• a substituted or unsubstituted silyl group, a halogen atom, and a cyano group.