Organic electroluminescence composition, material for organic electroluminescence element, solution of material for organic electroluminescence element, and organic electroluminescence element

Patent metadata

Field	Value
Publication number	US-2016190477-A1
Application number	US-201414911235-A
Country	US
Kind code	A1
Filing date	Aug 8, 2014
Priority date	Aug 9, 2013
Publication date	Jun 30, 2016
Grant date	—

Abstract

An organic electroluminescence composition including two or more compounds each having a specific structure combining a hole transporting ability and an electron transporting ability; an organic electroluminescence composition including one or more compounds each having a specific structure combining a hole transporting ability and an electron transporting ability and a different compound having an electron transporting skeleton; and a material for organic electroluminescence devices, a solution of a material for organic electroluminescence devices and an organic electroluminescence device, each including the aromatic heterocyclic derivative.

First claim

1 . An organic electroluminescence composition comprising two or more compounds represented by formula (1) or comprising at least one compound represented by formula (1) and at least one compound which is different from the compound represented by formula (1) and selected from compounds represented by formula (3):
AL 1 -B) m   (1)

wherein:
A represents a substituted or unsubstituted aromatic heterocyclic group;
L 1 represents a single bond, a substituted or unsubstituted aromatic hydrocarbon ring group, or a substituted or unsubstituted aromatic heterocyclic group;
B represents a residue of a structure represented by formula (2);
m represents an integer of 2 or more, and
groups L 1 may be the same or different, and residues B may be the same or different;

wherein:
one of X 1 and Y 1 represents a single bond, —CR 2 —, —NR—, —O—, —S—, or —SiR 2 —, and the other represents —NR—, —O—, —S— or —SiR 2 —;
one of X 2 and Y 2 represents a single bond, —CR 2 —, —NR—, —O—, —S—, or —SiR 2 —, and the other represents —NR—, —O—, —S—, or —SiR 2 —;
R represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aromatic hydrocarbon ring group, or a substituted or unsubstituted aromatic heterocyclic group;
Z 1 and Z 2 each independently represent a substituted or unsubstituted alicyclic hydrocarbon group, a substituted or unsubstituted aliphatic heterocyclic group, a substituted or unsubstituted aromatic hydrocarbon ring group, or a substituted or unsubstituted aromatic heterocyclic group;
L 2 represents a linking group; and
n represents an integer of 0 to 5, when n is 2 or more, groups Z 2 may be the same or different, groups X 2 may be the same or different, and groups Y 2 may be the same or different;

wherein:
each X 5 and each Y 5 represent a single bond, —CR 2 —, —NR—, —O—, —S—, or —SiR 2 —, wherein R is as defined above, provided that X 5 and Y 5 cannot all be a single bond;
Z 7 and Z 8 are the same as defined with respect to Z 1 and Z 2 , provided that each of Z 7 and Z 8 does not represent an alicyclic hydrocarbon group having three or more fused rings, an aliphatic heterocyclic group having three or more fused rings, an aromatic hydrocarbon ring group having three or more fused rings, or an aromatic heterocyclic group having three or more fused rings;
t represents an integer of 1 or more; and
L 3 represents a single bond, a substituted or unsubstituted aromatic hydrocarbon ring group, a substituted or unsubstituted aromatic heterocyclic group, or a combination thereof, provided that when t is 1, L 3 is not a single bond.

2 . An organic electroluminescence composition comprising a compound represented by formula (1) and at least one compound which is different from the compound represented by formula (1) and selected from compounds represented by formulae (4) to (6):
AL 1 -B) m   (1)

wherein:
A represents a substituted or unsubstituted aromatic heterocyclic group;
L 1 represents a single bond, a substituted or unsubstituted aromatic hydrocarbon ring group, or a substituted or unsubstituted aromatic heterocyclic group;
B represents a residue of a structure represented by formula (2);
m represents an integer of 2 or more, and
groups L 1 may be the same or different, and residues B may be the same or different;

wherein:
one of X 1 and Y 1 represents a single bond, —CR 2 —, —NR—, —O—, —S—, or —SiR 2 —, and the other represents —NR—, —O—, —S— or —SiR 2 —;
one of X 2 and Y 2 represents a single bond, —CR 2 —, —NR—, —O—, —S—, or —SiR 2 —, and the other represents —NR—, —O—, —S— or —SiR 2 —;
R represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aromatic hydrocarbon ring group, or a substituted or unsubstituted aromatic heterocyclic group;
Z 1 and Z 2 each independently represent a substituted or unsubstituted alicyclic hydrocarbon group, a substituted or unsubstituted aliphatic heterocyclic group, a substituted or unsubstituted aromatic hydrocarbon ring group, or a substituted or unsubstituted aromatic heterocyclic group;
L 2 represents a linking group; and
n represents an integer of 0 to 5, when n is 2 or more, groups Z 2 may be the same or different, groups X 2 may be the same or different, and groups Y 2 may be the same or different;

wherein A 1 to A 3 each represent a substituted or unsubstituted aromatic hydrocarbon ring group or a substituted or unsubstituted aromatic heterocyclic group;

wherein L 4 represents a divalent group wherein 1 to 4 substituted or unsubstituted aromatic hydrocarbon rings are linked together or a divalent group wherein 1 to 4 substituted or unsubstituted aromatic heterocyclic rings are linked together; A 4 to A 6 each represent a substituted or unsubstituted aromatic hydrocarbon ring group or a substituted or unsubstituted aromatic heterocyclic group; and A 4 and A 5 may be bonded to each other to form a ring structure;

wherein L 5 represents a divalent group wherein 1 to 6 substituted or unsubstituted aromatic hydrocarbon rings are linked together or a divalent group wherein 1 to 6 substituted or unsubstituted aromatic heterocyclic rings are linked together; and A 7 to A 10 each represent a group wherein 1 to 10 substituted or unsubstituted aromatic hydrocarbon rings are linked together or a group wherein 1 to 10 substituted or unsubstituted aromatic heterocyclic rings are linked together.

3 . An organic electroluminescence composition comprising a compound represented by formula (1) and at least one compound which is different from the compound represented by formula (1) and selected from compounds represented by formula (7):
AL 1 -B) m   (1)

wherein:
A represents a substituted or unsubstituted aromatic heterocyclic group;
L 1 represents a single bond, a substituted or unsubstituted aromatic hydrocarbon ring group, or a substituted or unsubstituted aromatic heterocyclic group;
B represents a residue of a structure represented by formula (2);
m represents an integer of 2 or more, and
groups L 1 may be the same or different, and residues B may be the same or different;

wherein:
one of X 1 and Y 1 represents a single bond, —CR 2 —, —NR—, —O—, —S—, or —SiR 2 —, and the other represents —NR—, —O—, —S— or —SiR 2 —;
one of X 2 and Y 2 represents a single bond, —CR 2 —, —NR—, —O—, —S—, or —SiR 2 —, and the other represents —NR—, —O—, —S—, or —SiR 2 —;
R represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aromatic hydrocarbon ring group, or a substituted or unsubstituted aromatic heterocyclic group;
Z 1 and Z 2 each independently represent a substituted or unsubstituted alicyclic hydrocarbon group, a substituted or unsubstituted aliphatic heterocyclic group, a substituted or unsubstituted aromatic hydrocarbon ring group, or a substituted or unsubstituted aromatic heterocyclic

Assignees

• Idemitsu Kosan Co
• Sony Corp

Inventors

• Kawakami Hironori
• Funahashi Masakazu
• Yoshinaga Tadahiko
• Toyoshima Hiroaki

Classifications

• H01L51/5016

  Electricity · mapped topic

• H01L51/0085

  Electricity · mapped topic

• H01L51/0067

  Electricity · mapped topic

• H01L51/0072 Primary

  Electricity · mapped topic

• C09K11/025

  non-luminescent particle coatings or suspension media · CPC title