Organic electroluminescent element

An organic electroluminescence device, comprising:

• an anode,
• a cathode;
• and
• an organic thin-film layer comprised between the anode and the cathode,
• wherein the organic thin-film layer comprises a light emitting layer comprising a host material and a light emitting material, and a hole transporting layer comprised on a side closer to the anode than the light emitting layer,
• wherein the hole transporting layer comprises a layer comprising an electron acceptable compound and a first hole transporting layer in the stated order from the anode,
• wherein the electron acceptable compound is of formula (10)
• wherein
• R7 to R12 are each independently a cyano group, —CONH2, a carboxyl group, or —COOR13 wherein R13 represents an alkyl group comprising 1 to 20 carbon atoms,
• or
• R7 and R8, R9 and R10, or R11 and R12 are bonded to each other to represent a group represented by —CO—O—CO—, and
• wherein the first hole transporting layer comprises a compound of formula (2)
• wherein at least one of Ar5 to Ar7 is a group of formula (3)
• wherein
• L2 is a single bond, or a substituted or unsubstituted arylene group comprising 6 to 50 ring carbon atoms, and an optional substituent of L2 is a linear or branched alkyl group comprising 1 to 10 carbon atoms, a cycloalkyl group comprising 3 to 10 ring carbon atoms, a trialkylsilyl group comprising 3 to 10 carbon atoms, a triarylsilyl group comprising 18 to 30 ring carbon atoms, an alkylarylsilyl group comprising 8 to 15 carbon atoms whose aryl moiety comprises 6 to 14 ring carbon atoms, an aryl group comprising 6 to 14 ring carbon atoms, a halogen atom, or a cyano group, and
• R1 and R2 are each independently a substituted or unsubstituted, linear or branched alkyl group comprising 1 to 10 carbon atoms, a substituted or unsubstituted cycloalkyl group comprising 3 to 10 ring carbon atoms, a substituted or unsubstituted trialkylsilyl group comprising 3 to 10 carbon atoms, a substituted or unsubstituted triarylsilyl group comprising 18 to 30 ring carbon atoms, a substituted or unsubstituted alkylarylsilyl group comprising 8 to 15 carbon atoms whose aryl moiety comprises 6 to 14 ring carbon atoms, a substituted or unsubstituted aryl group having comprising 6 to 16 ring carbon atoms, a halogen atom, or a cyano group, and a plurality of adjacent R1's or R2's are optionally bonded to each other to form a saturated or unsaturated, divalent group that forms a ring, and
• a and b are each independently an integer of 0 to 4,
• wherein, in formula (2), any one of Ar5 to Ar7 other than the group of formula (3) is (2-i) a substituted or unsubstituted aryl group comprising 6 to 40 carbon atoms,
• or (2-ii) a group of formula (4)
• wherein
• L3 is a single bond, or a substituted or unsubstituted arylene group comprising 6 to 50 ring carbon atoms, and an optional substituent of L3 is a linear or branched alkyl group comprising 1 to 10 carbon atoms, a cycloalkyl group having 3 to 10 ring carbon atoms, a trialkylsilyl group comprising 3 to 10 carbon atoms, a triarylsilyl group comprising 18 to 30 ring carbon atoms, an alkylarylsilyl group comprising 8 to 15 carbon atoms whose aryl moiety comprises 6 to 14 ring carbon atoms, an aryl group comprising 6 to 14 ring carbon atoms, a halogen atom, or a cyano group,
• c and d are each independently an integer of 0 to 4, and
• R3 and R4 are each independently a substituted or unsubstituted, linear or branched alkyl group comprising 1 to 10 carbon atoms, a substituted or unsubstituted cycloalkyl group comprising 3 to 10 ring carbon atoms, a substituted or unsubstituted trialkylsilyl group comprising 3 to 10 carbon atoms, a substituted or unsubstituted triarylsilyl group comprising 18 to 30 ring carbon atoms, a substituted or unsubstituted alkylarylsilyl group comprising 8 to 15 carbon atoms whose aryl moiety comprises 6 to 14 ring carbon atoms, a substituted or unsubstituted aryl group comprising 6 to 14 ring carbon atoms, a halogen atom, or a cyano group, and a plurality of adjacent R3's or R4's are optionally bonded to each other to form a saturated or unsaturated, divalent group that forms a ring
• or (2-iii) a group of formula (5)
• wherein
• L4 is a single bond, or a substituted or unsubstituted arylene group comprising 6 to 50 ring carbon atoms, and an optional substituent of L4 is a linear or branched alkyl group comprising 1 to 10 carbon atoms, a cycloalkyl group comprising 3 to 10 ring carbon atoms, a trialkylsilyl group comprising 3 to 10 carbon atoms, a triarylsilyl group comprising 18 to 30 ring carbon atoms, an alkylarylsilyl group comprising 8 to 15 carbon atoms whose aryl has comprises 6 to 14 ring carbon atoms, an aryl group comprising 6 to 14 ring carbon atoms, a halogen atom, or a cyano group,
• Ar8 is a substituted or unsubstituted aryl group comprising 6 to 14 ring carbon atoms, and an optional substituent of Ar8 is a linear or branched alkyl group comprising 1 to 10 carbon atoms, a cycloalkyl group comprising 3 to 10 ring carbon atoms, a trialkylsilyl group comprising 3 to 10 carbon atoms, a triarylsilyl group comprising 18 to 30 ring carbon atoms, an alkylarylsilyl group comprising 8 to 15 carbon atoms whose aryl moiety comprises 6 to 14 ring carbon atoms, an aryl group comprising 6 to 14 ring carbon atoms, a halogen atom, or a cyano group,
• e is an integer of 0 to 3,
• f is an integer of 0 to 4, and
• R5 and R6 are each independently a substituted or unsubstituted, linear or branched alkyl group comprising 1 to 10 carbon atoms, a substituted or unsubstituted cycloalkyl group comprising 3 to 10 ring carbon atoms, a substituted or unsubstituted trialkylsilyl group comprising 3 to 10 carbon atoms, a substituted or unsubstituted triarylsilyl group comprising 18 to 30 ring carbon atoms, a substituted or unsubstituted alkylarylsilyl group comprising 8 to 15 carbon atoms whose aryl moiety comprises 6 to 14 ring carbon atoms, a substituted or unsubstituted aryl group comprising 6 to 14 ring carbon atoms, a halogen atom, or a cyano group, and a plurality of adjacent R5's or R6's are optionally bonded to each other to form a saturated or unsaturated, divalent group that forms a ring.