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US 2017/0373259 A1Published application
Organic Electroluminescent Materials and Devices
AssigneeUniversal Display Corporation
InventorsMingjuan Su, Walter Yeager, Alan DeAngelis, Bin Ma, Lichang Zeng, Chuanjun Xia
Life of this patent
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Abstract
The present invention includes a new series of benzofused heterocyclic ligands for metal complexes. These complexes show promising photophysical performance when incorporated into OLEDs.
Claims20
A compound comprising a first ligand LA having Formula I:
- Formula I;
- wherein ring B is a 5 or 6-membered carbocyclic or heterocyclic ring;
- wherein RB represents mono to the possible maximum number of substitution, or no substitution;
- wherein Z1 and Z2 are each independently selected from the group consisting of carbon or nitrogen;
- wherein A1, A2, A3, and A4 are each independently CR or N;
- wherein ring C is a 5 or 6-membered aromatic ring;
- n is 0 or 1;
- wherein when n is 0, A8 is not present, and A5, A6, and A7 are each independently selected from the group consisting of CR, NR′, O, S, and Se;
- wherein when n is 1, A5, A6, A7, and A8 are each independently CR or N, and at least two adjacent A1, A2, A3, A4, A5, A6, A7, and A8 are CR and the Rs are joined together to form a six-membered ring fused to ring A or ring C;
- wherein each R and R′ in CR or NR′ can be the same or different;
- wherein X is O, S, or Se;
- wherein R, R′ and RB are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- wherein any adjacent substituents are optionally joined or fused into a ring;
- wherein the ligand LA is coordinated to a metal M;
- wherein the metal M is bonded to ring A through a M-C bond;
- wherein the metal M can be coordinated to other ligands;
- and
- wherein the ligand LA is optionally linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand.
15 more elements
An organic light-emitting device (OLED) comprising:
- an anode;
- a cathode;
- and
- an organic layer, disposed between the anode and the cathode, comprising a compound comprising a first ligand LA having Formula I:
- wherein ring B is a 5 or 6-membered carbocyclic or heterocyclic ring;
- wherein RB represents mono to the possible maximum number of substitution, or no substitution;
- wherein Z1 and Z2 are each independently selected from the group consisting of carbon or nitrogen;
- wherein A1, A2, A3, and A4 are each independently CR or N;
- wherein ring C is a 5 or 6-membered aromatic ring;
- n is 0 or 1;
- wherein when n is 0, A8 is not present, and A5, A6, and A7 are each independently selected from the group consisting of CR, NR′, O, S, and Se;
- wherein when n is 1, A5, A6, A7, and A8 are each independently a CR or N, and at least two adjacent A1, A2, A3, A4, A5, A6, A7, and A8 are CR and the Rs are joined together to form a six-membered ring fused to ring A or ring C;
- wherein each R and R′ in CR or NR′ can be the same or different;
- wherein X is O, S, or Se;
- wherein R, R′ and RB are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- wherein any adjacent substituents are optionally joined or fused into a ring;
- wherein the ligand LA is coordinated to a metal M;
- wherein the metal M is bonded to ring A through a M-C bond;
- wherein the metal M can be coordinated to other ligands;
- and
- wherein the ligand LA is optionally linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand.
18 more elements
A consumer product comprising an organic light-emitting device (OLED) comprising:
- an anode;
- a cathode;
- and
- an organic layer, disposed between the anode and the cathode, comprising a compound having a ligand of Formula I:
- wherein ring B is a 5 or 6-membered carbocyclic or heterocyclic ring;
- wherein RB represents mono to the possible maximum number of substitution, or no substitution;
- wherein Z1 and Z2 are each independently selected from the group consisting of carbon or nitrogen;
- wherein A1, A2, A3, and A4 are each independently CR or N;
- wherein ring C is a 5 or 6-membered aromatic ring;
- n is 0 or 1;
- wherein when n is 0, A8 is not present, and A5, A6, and A7 are each independently selected from the group consisting of CR, NR′, O, S, and Se;
- wherein when n is 1, A5, A6, A7, and A8 are each independently CR or N, and at least two adjacent A1, A2, A3, A4, A5, A6, A7, and A8 are CR and the Rs are joined together to form a six-membered ring fused to ring A or ring C;
- wherein each R and R′ in CR or NR′ can be the same or different;
- wherein X is O, S, or Se;
- wherein R, R′ and RB are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- wherein any adjacent substituents are optionally joined or fused into a ring;
- wherein the ligand LA is coordinated to a metal M;
- wherein the metal M is bonded to ring A through a M-C bond;
- wherein the metal M can be coordinated to other ligands;
- and
- wherein the ligand LA is optionally linked with other ligands to comprise a tridentate, tetradentate, pentadentate or hexadentate ligand.
18 more elements
Dependencies are inferred from the claim text.