Organometallic compound, organic light-emitting device including the same, and apparatus including the light-emitting device

Patent metadata

Field	Value
Publication number	US-12534665-B2
Application number	US-201916666327-A
Country	US
Kind code	B2
Filing date	Oct 28, 2019
Priority date	Apr 15, 2019
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

Provided are an organometallic compound, an organic light-emitting device including the same, and an apparatus including the organic light-emitting device. The organic light-emitting device includes: a first electrode; a second electrode; and an organic layer including an emission layer between the first electrode and the second electrode, wherein the organic layer includes the organometallic compound.

First claim

What is claimed is:

1 . An organometallic compound, wherein:
the organometallic compound is selected from Group I:

2 . An organic light-emitting device comprising:
a first electrode; a second electrode; and an organic layer comprising an emission layer between the first electrode and the second electrode, wherein the organic layer comprises the organometallic compound of claim 1 .

3 . The organic light-emitting device of claim 2 , wherein:
the emission layer comprises the organometallic compound.

4 . The organic light-emitting device of claim 3 , wherein:
the emission layer further comprises a second compound and a third compound, the organometallic compound, the second compound, and the third compound are different from each other, the second compound and the third compound form an exciplex, and the organometallic compound and at least one selected from the second compound and the third compound do not form an exciplex.

5 . The organic light-emitting device of claim 4 , wherein:
the second compound is represented by Formula 2; and the third compound is represented by Formula 3:

wherein, in Formulae 2 and 3,
X 21 is selected from C(R 21 ) and N; X 22 is selected from C(R 22 ) and N; X 23 is selected from C(R 23 ) and N; X 24 is selected from C(R 24 ) and N; X 25 is selected from C(R 25 ) and N; X 26 is selected from C(R 26 ) and N; and at least one selected from X 21 to X 26 is N,
R 21 to R 26 are each independently selected from a group represented by *-(L 21 ) a21 -(R 27 ) b27 , hydrogen, deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, 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 C 1 -C 10 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 7 -C 60 alkyl aryl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted C 2 -C 60 alkyl heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —C(Q 1 )(Q 2 )(Q 3 ), —Si(Q 1 )(Q 2 )(Q 3 ), —B(Q 1 )(Q 2 ), —N(Q 1 )(Q 2 ), —P(Q 1 )(Q 2 ), —C(═O)(Q 1 ), —S(═O)(Q 1 ), —S(═O) 2 (Q 1 ), —P(═O)(Q 1 )(Q 2 ) and —P(═S)(Q 1 )(Q 2 ), wherein at least one selected from R 21 to R 26 is a group represented by *-(L 21 ) a21 -(R 27 ) b27 ;
L 21 is selected from a substituted or unsubstituted C 5 -C 60 carbocyclic group and a substituted or unsubstituted C 1 -C 60 heterocyclic group, and
a21 is an integer from 0 to 6,
R 27 is selected from 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 C 1 -C 10 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 7 -C 60 alkyl aryl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted C 2 -C 60 alkyl heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —C(Q 1 )(Q 2 )(Q 3 ), —Si(Q 1 )(Q 2 )(Q 3 ), —B(Q 1 )(Q 2 ), —N(Q 1 )(Q 2 ), —P(Q 1 )(Q 2 ), —C(═O)(Q 1 ), —S(═O)(Q 1 ), —S(═O) 2 (Q 1 ), —P(═O)(Q 1 )(Q 2 ), and —P(═S)(Q 1 )(Q 2 );
b27 is an integer from 1 to 10,
X 31 is selected from a single bond, O, S, B(R 33 ), N(R 33 ), C(R 33 )(R 34 ), and Si(R 33 )(R 34 ); X 32 is selected from a single bond, O, S, B(R 35 ), N(R 35 ), C(R 35 )(R 36 ), and Si(R 35 )(R 36 ); and X 31 and X 32 are not each a single bond simultaneously,
ring A 31 to ring A 36 are each independently selected from a C 5 -C 60 carbocyclic group and a C 1 -C 60 heterocyclic group,
R 31 to R 36 are each independently selected from a group represented by *-(L 31 ) a31 -(R 37 ) b37 , hydrogen, deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, 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 C 1 -C 10 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 7 -C 60 alkyl aryl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted C 2 -C 60 alkyl heteroaryl group, a substituted or unsubstituted monovalent non-aromatic condensed polycyclic group, a substituted or unsubstituted monovalent non-aromatic condensed heteropolycyclic group, —C(Q 1 )(Q 2 )(Q 3 ), —Si(Q 1 )(Q 2 )(Q 3 ), —B(Q 1 )(Q 2 ), —N(Q 1 )(Q 2 ), —P(Q 1 )(Q 2 ), —C(═O)(Q 1 ), —S(═O)(Q 1 ), —S(═O) 2 (Q 1 ), —P(═O)(Q 1 )(Q 2 ), and —P(═S)(Q 1 )(Q 2 ), wherein at least one selected from R 31 to R 36 is a group represented by *-(L 31 ) a31 -(R 37 ) b37 ;
b31 and b32 are each independently an integer from 1 to 10;
L 31 is selected from a substituted or unsubstituted C 5 -C 60 carbocyclic group and a substituted or unsubstituted C 1 -C 60 heterocyclic group,
a31 is an integer from 0 to 6,
R 37 is selected from 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 C 1 -C 10 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 7 -C 60 alkyl aryl group, a substituted or unsubstituted C 6 -C 60 aryloxy group, a substituted or unsubstituted C 6 -C 60 arylthio group, a substituted or unsubstituted C 1 -C 60 heteroaryl group, a substituted or unsubstituted C 2 -C 60 alkyl heteroaryl group, a substituted

Assignees

• Samsung Display Co Ltd

Inventors

• Ko Soobyung
• Ahn Eunsoo
• Lee Hyunjung
• Jeon Mina
• Kim Sungbum
• Shin Sujin
• Lee Eunyoung
• Lee Jaesung
• Lee Jihyung
• HAN Junghoon

Classifications

• H10K2101/90

  Multiple hosts in the emissive layer · CPC title

• H10K2101/10

  Triplet emission · CPC title

• H10K50/121

  for assisting energy transfer, e.g. sensitization · CPC title

• H10K50/11

  characterised by the electroluminescent [EL] layers · CPC title

• C09K2211/185

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