Organic light-emitting device

Patent metadata

Field	Value
Publication number	US-9722191-B2
Application number	US-201514661427-A
Country	US
Kind code	B2
Filing date	Mar 18, 2015
Priority date	Jul 29, 2014
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

An organic light-emitting device including a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the organic layer includes at least one organometallic compound represented by Formula 1, below, and at least one condensed cyclic compound represented by Formula 40, below:

First claim

What is claimed is:

1. An organic light-emitting device, comprising:
a first electrode;
a second electrode facing the first electrode; and
an organic layer between the first electrode and the second electrode, the organic layer including an emission layer,
wherein the organic layer includes at least one organometallic compound represented by Formula 1, below, and at least one condensed cyclic compound represented by Formula 40, below:
M(L 1 ) n1 (L 2 ) n2   <Formula 1>

wherein, in Formula 1,
M is iridium (Ir),
L 1 is selected from a monovalent organic ligand, a divalent organic ligand, trivalent organic ligand, and a tetravalent organic ligand,
L 2 is selected from ligands represented by Formula 2, and different from L 1 ;
n1 is 0, 1, 2, or 4;
n2 is 1, 2, or 3;
when n1 is 2 or more, two or more L 1 are identical or different, and when n2 is 2 or more, two or more L 2 are identical to different,

wherein, in Formula 2 and Formula 40,
X 1 is N or C(R 1 ), X 2 is N or C(R 2 ), X 3 is N or C(R 3 ), and X 4 is N or C(R 4 );
X 41 is N or C(R 41 ), X 42 is N or C(R 42 ), X 43 is N or C(R 43 ), and X 44 is N or C(R 44 ), wherein at least one of X 41 to X 44 is N;
Ar 41 is selected from a substituted or unsubstituted C 3 -C 10 cycloalkylene group, a substituted or unsubstituted C 1 -C 10 heterocycloalkylene group, a substituted or unsubstituted C 3 -C 10 cycloalkenylene group, a substituted or unsubstituted C 1 -C 10 heterocycloalkenylene group, a substituted or unsubstituted C 6 -C 60 arylene group, a substituted or unsubstituted C 1 -C 60 heteroarylene group, a substituted or unsubstituted divalent non-aromatic condensed polycyclic group, and a substituted or unsubstituted divalent non-aromatic condensed heteropolycyclic group;
n41 is an integer selected from 1, 2, 3, and 4, and when n41 is 2 or more, a plurality of —(Ar 41 ) j —(R 48 ) k are identical or different;
R 1 to R 8 and R 41 to R 48 are each independently a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid or a salt thereof, a sulfonic acid or a salt thereof, a phosphoric acid or a salt thereof, a substituted or unsubstituted C 1 -C 60 alkyl group, a substituted or unsubstituted C 2 -C 60 alkenyl group, a substituted or unsubstituted C 2 -C 60 alkynyl group, a substituted or unsubstituted C 1 -C 60 alkoxy group, a substituted or unsubstituted C 3 -C 10 cycloalkyl group, a substituted or unsubstituted heterocycloalkyl group, a substituted or unsubstituted C 3 -C 10 cycloalkenyl group, a substituted or unsubstituted C 1 -C 10 heterocycloalkenyl group, a substituted or unsubstituted C 6 -C 60 aryl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthiogroup, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —N(Q 1 )(Q 2 ), —Si(Q 3 )(Q 4 )(Q 5 ), or —B(Q 6 )(Q 7 );
two or more substituent of R 5 to R 8 are separate or are linked to each other so as to form a substituted or unsubstituted C 6 -C 20 saturated ring or a substituted or unsubstituted C 6 -C 20 unsaturated ring;
R 45 and R 46 are separate or are linked to each other so as to form a substituted or unsubstituted C 6 -C 20 saturated ring or a substituted or unsubstituted C 6 -C 20 unsaturated ring;
i, j, and k are each independently an integer selected from 0, 1, 2, and 3, and when i is 2 or more, a plurality of R 47 are identical or different, when j are 2 or more, a plurality of Ar 47 are identical or different, and when k is 2 or more, a plurality of R 48 are identical or different,
at least one substituent of the substituted C 1 -C 60 alkyl group, the substituted C 2 -C 60 alkenyl group, the substituted C 2 -C 60 alkynyl group, the substituted C 1 -C 60 alkoxy group, the substituted C 3 -C 10 cycloalkyl group, the substituted C 1 -C 10 heterocycloalkyl group, the substituted C 3 -C 10 cycloalkenyl group, the substituted C 1 -C 10 heterocycloalkenyl group, the substituted C 6 -C 60 aryl group, the substituted C 6 -C 60 aryloxy group, the substituted C 6 -C 60 arythio group, the substituted C 1 -C 60 heteroaryl group, the substituted monovalent non-aromatic condensed polycyclic group, and the substituted monovalent non-aromatic condensed heteropolycyclic group is:
a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid or a salt thereof, a sulfonic acid or a salt thereof, a phosphoric acid or a salt thereof, a C 1 -C 60 alkyl group, a C 2 -C 60 alkenyl group, a C 2 -C 60 alkynyl group, or a C 1 -C 60 alkoxy group;
a C 1 -C 60 alkyl group, a C 2 -C 60 alkenyl group, a C 2 -C 60 alkynyl group, or a C 1 -C 60 alkoxy group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C 3 -C 10 cycloalkyl group, a C 1 -C 10 heterocycloalkyl group, a C 3 -C 10 cycloalkenyl group, a C 1 -C 10 heterocycloalkenyl group, a C 6 -C 60 aryl group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 1 -C 60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q 11 )(Q 12 ), —Si(Q 13 )(Q 14 )(Q 15 ), or —B(Q 16 )(Q 17 );
a C 3 -C 10 cycloalkyl group, a C 1 -C 10 heterocycloalkyl group, a C 3 -C 10 cycloalkenyl group, a C 1 -C 10 heterocycloalkenyl group, a C 6 -C 60 aryl group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 1 -C 60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group;
a C 3 -C 10 cycloalkyl group, a C 1 -C 10 heterocycloalkyl group, a C 3 -C 10 cycloalkenyl group, a C 1 -C 10 heterocycloalkenyl group, a C 6 -C 60 aryl group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 1 -C 60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, or a monovalent non-aromatic condensed heteropolycyclic group, each substituted with at least one selected from a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine group, a hydrazone group, a carboxylic acid group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid group or a salt thereof, a C 1 -C 60 alkyl group, a C 3 -C 60 alkenyl group, a C 2 -C 60 alkynyl group, a C 1 -C 60 alkoxy group, a C 3 -C 10 cycloalkyl group, a C 1 -C 10 heterocycloalkyl group, a C 3 -C 10 cycloalkenyl group, a C 1 -C 10 heterocycloalkenyl group, a C 6 -C 60 aryl group, a C 6 -C 60 aryloxy group, a C 6 -C 60 arylthio group, a C 1 -C 60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —N(Q 21 )(Q 22 ), —Si(Q 23 )(Q 24 )(Q 25 ), and —B(Q 26 )(Q 27 ); or
—N(Q 31 )(Q 32 ), —Si(Q 33 )(Q 34 )(Q 35 ), or —B(Q 36 )(Q 37 );
wherein Q 1 to Q 7 , Q 11 to Q 17 , Q 21 to Q 27 , and Q 31 to Q 37 are each independently a hydrogen, a deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amino group, an

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Sungwook
• Kim Myeongsuk
• Hwang Jinsoo

Classifications

• C09K2211/1011

  Condensed systems · CPC title

• C09K2211/1007

  Non-condensed systems · CPC title

• C09K2211/185

  of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd · CPC title

• C09K2211/1029

  containing one nitrogen atom as the heteroatom · CPC title

• C09K2211/1044

  containing two nitrogen atoms as heteroatoms · CPC title