Organic electroluminescent materials and devices
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Abstract
Compounds having a structure of Formula I,
where G1 has the formula
having the structure
are described. In the structure of Formula I: Z1 to Z24 are each independently selected from group consisting of carbon and nitrogen; p is an integer from 1 to 10; adjacent carbazole groups G11, G12, and G13 are each bonded together either by a 9N-2C bond or a 9N-3C bond; G1 can include at least one 9N-2C intercarbazole bond and at least one 9N-3C intercarbazole bond; L and G2 are each independently selected from the group consisting of alkyl, aryl, or heteroaryl, which may be further substituted; m and n are both integers; and m+n ranges from 1 to the maximum number of possible substituents on L. Formulations and devices, such as an OLEDs, that include the compound of Formula I are also described.
83 Citations
20 Claims
- 1. A compound having a structure of Formula I:
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8. A device comprising one or more organic light emitting devices, at least one of the one or more organic light emitting devices comprising:
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an anode; a cathode; and an organic layer, disposed between the anode and the cathode, comprising a compound having a structure of Formula I; - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A formulation comprising a compound having a structure of Formula I:
Specification