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US 8,785,003 B2Granted
Material for organic electroluminescence device and organic electroluminescence device using the same
AssigneeIdemtisu Kosan Co., Ltd.
InventorsTetsuya Inoue, Kumiko Hibino, Kei Yoshida, Kazuki Nishimura, Toshihiro Iwakuma
Life of this patent
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Abstract
An organic EL device material includes at least a unit including 3,5-biscarbazolylphenyl group, a unit including 4-carbazolylphenyl group, and a compound including a unit including a nitrogen-containing aromatic heterocyclic ring bonding the unit including 3,5-biscarbazolylphenyl group and the unit including 4-carbazolylphenyl group.
Claims11
An organic EL device material comprising:
- a unit comprising a 3,5-biscarbazolylphenyl group
- a unit comprising a 4-carbazolylphenyl group;
- and
- a compound comprising a unit comprising a nitrogen-containing aromatic heterocyclic ring bonding the unit comprising the 3,5-biscarbazolylphenyl group and the unit comprising the 4-carbazolylphenyl group, wherein the organic EL material is represented by a formula (4)
- where:
- A1, A2 and A3 each represent a substituted or unsubstituted aromatic hydrocarbon group having 6 to 60 ring carbon atoms;
- Cz1 to Cz3 each independently represent a substituted or unsubstituted carbazolyl group and is allowed to be mutually the same or different;
- Y1 and Y2 each independently represent a hydrogen atom, a fluorine atom, a cyano group, a substituted or unsubstituted and linear, branched or cyclic alkyl group having 1 to 20carbon atoms, a substituted or unsubstituted and linear, branched or cyclic alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted and linear, branched or cyclic haloalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted and linear, branched or cyclic haloalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted and linear, branched or cyclic alkylsilyl group having 1 to 10 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 30 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 2 to 10 ring carbon atoms;
- a represents an integer of 0 to 3 and b represents an integer of 0 to 4;
- p and q each independently represent an integer of 0 to 3;
- when p is 2 or more, A1 is allowed to be the same or different;
- and
- when q is 2 or more, A2 is allowed to be the same or different
10 more elements
An organic EL device material comprising:
- a unit comprising a 3,5-biscarbazolylphenyl group;
- a unit comprising a 4-carbazolylphenyl group;
- and
- a compound comprising a unit comprising a nitrogen-containing aromatic heterocyclic ring bonding the unit comprising the 3,5-biscarbazolylphenyl group and the unit comprising the 4-carbazolylphenyl group, wherein the organic EL material is represented by a formula (1)
- where:
- A1 and A2 each represent a substituted or unsubstituted aromatic hydrocarbon group having 6 to 60 ring carbon atoms;
- Cz1 to Cz3 each independently represent a substituted or unsubstituted carbazolyl group and is allowed to be mutually the same or different;
- X represents a substituted or unsubstituted nitrogen-containing aromatic heterocyclic ring selected from the group consisting of a substituted triazine ring, an unsubstituted triazine ring, a substituted indole ring and an unsubstituted indole ring;
- Y1 and Y2 each independently represent a hydrogen atom, a fluorine atom, a cyano group, a substituted or unsubstituted and linear, branched or cyclic alkyl group having 1 to 20carbon atoms, a substituted or unsubstituted and linear, branched or cyclic alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted and linear, branched or cyclic haloalkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted and linear, branched or cyclic haloalkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted and linear, branched or cyclic alkylsilyl group having 1 to 10 carbon atoms, a substituted or unsubstituted arylsilyl group having 6 to 30 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 2 to 10 ring carbon atoms;
- a represents an integer of 0 to 3 and b represents an integer of 0 to 4;
- 1, m and n each independently represent an integer of 1 to 3;
- when 1 is 2 or more, X is allowed to be the same or different;
- m represents an integer of 1 to 3 as the number of substituent(s) being directly bonded to X and being represented by a formula (2) shown below;
- when m is 2 or more, structures represented by the formula (2) is allowed to be the same or different;
- n represents an integer of 1 to 3 as the number of substituent(s) being directly bonded to X and being represented by a formula (3) shown below;
- when n is 2 or more, structures represented by the formula (3) is allowed to be the same or different;
- p and q each independently represent an integer of 0 to 3;
- when p is 2 or more, A1 is allowed to be the same or different;
- and
- when q is 2 or more, A2 is allowed to be the same or different
17 more elements
Dependencies are inferred from the claim text.