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US 2012/0256169 A1Published application
Substituted oligoazacarbazoles for light emitting diodes
AssigneeUniversal Display Corporation
InventorsAlexey Dyatkin, Lichang Zeng
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Abstract
Novel compounds containing substituted oligoazacarbazole chains are provided. These compounds are useful in organic light emitting devices, in particular as hosts in the emissive layer of such devices.
Claims17
A compound of formula I:
- Y—X—Z, Formula I,
- wherein Y is selected from the group consisting of
- wherein A, B, C, and D are independently selected from the compound of formula II:
- wherein
- X1 is selected from the group C—R1 and N;
- X2 is selected from the group C—R2 and N;
- X3 is selected from the group C—R3 and N;
- X4 is selected from the group C—R4 and N;
- X5 is selected from the group C—R5 and N;
- X6 is selected from the group C—R6 and N;
- X7 is selected from the group C—R7 and N;
- X8 is selected from the group C—R8 and N;
- wherein A, B, C, and D are connected to each other through C—N bonds;
- wherein at least one of A, B, C, and D is not carbazole;
- wherein X is an aryl or heteroaryl linker that is optionally further substituted;
- wherein Y and X are connected through a C—N bond;
- wherein R1, R2, R3, R4, R5, R6, R7, and R8 are 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;
- and
- wherein Z is selected from the group consisting of dibenzothiphene, dibenzofuran, dibenzoselenophene, aza-dibenzothiophene, aza-dibenzofuran, and aza-dibenzoselenophene that is optionally further substituted.
16 more elements
A first device, comprising an organic light emitting device comprising:
- an anode;
- a cathode;
- and
- a first organic layer disposed between the anode and the cathode, comprising a compound having the formula I:
- Y—X—Z Formula I,
- wherein Y is selected from the group consisting of:
- wherein A, B, C, and D are independently selected from the compound of formula II:
- wherein
- X1 is selected from the group C—R1 and N;
- X2 is selected from the group C—R2 and N;
- X3 is selected from the group C—R3 and N;
- X4 is selected from the group C—R4 and N;
- X5 is selected from the group C—R5 and N;
- X6 is selected from the group C—R6 and N;
- X7 is selected from the group C—R7 and N;
- X8 is selected from the group C—R8 and N;
- wherein A, B, C, and D are connected to each other through C—N bonds;
- wherein at least one of A, B, C, and D is not carbazole;
- wherein X is an aryl or heteroaryl linker that is optionally further substituted;
- wherein Y and X are connected through a C—N bond;
- wherein R′, R″, R1, R2, R3, R4, R5, R6, R7, and R8 are 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, sulfonyl, sulfonyl, sulfonyl, phosphino, and combinations thereof;
- and
- wherein Z is selected from the group consisting of dibenzothiphene, dibenzofuran, dibenzoselenophene, aza-dibenzothiophene, aza-dibenzofuran, and aza-dibenzoselenophene that is optionally further substituted.
20 more elements
Dependencies are inferred from the claim text.