Phosphorescent materials
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Abstract
Phosphorescent materials and devices having high efficiency and stability, narrow spectrum, and improved processibility. In particular, iridium complexes containing acac-derived ligands with branched alkyl substituents with branching at a position further than the α position to the carbonyl group, were found to be suitable for use as emitters in OLED devices.
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Citations
21 Claims
- 1. A compound having the formula:
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8. An organic light emitting device comprising:
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an anode; a cathode; and an organic layer, disposed between the anode and the cathode, the organic layer comprising a compound having the formula; - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A consumer product comprising a device, the device comprising:
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an anode; a cathode; and an organic layer, disposed between the anode and the cathode, the organic layer comprising a compound having the formula;
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Specification