Organic electroluminescent materials and devices
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Abstract
Luminescent materials including donor-acceptor compounds with a high triplet energy heteropolyaromatic system, namely, dibenzofuran, dibenzothiophene and dibenzoselenophene with one or multiple nitrogens in the ring as the electron acceptor for use as emitters in organic light emitting diodes is disclosed.
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Citations
23 Claims
- 1. A compound having the formula:
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5. A first device comprising a first organic light emitting device, the first organic light emitting device comprising:
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an anode; a cathode; and an emissive layer, disposed between the anode and the cathode; wherein the emissive layer comprises a host material and a first emitting compound having the formula; - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification