- Compound, hole transport material, organic electroluminescent device and display device
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The embodiment of the invention provides a compound shown as a general formula (I), which can be used for an organic light-emitting device and used as a hole transport material. The compound has an asymmetric disubstituted dibenzoheterocycle parent structure, which has high bond energy between atoms and good thermal stability, so that the service life of the material is prolonged. When being usedas a hole transport layer material, the organic electroluminescent material has a proper energy level with an adjacent layer, is beneficial to hole injection and migration, can effectively reduce driving voltage, has a high hole migration rate, and can effectively improve the luminous efficiency of a device.
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Paragraph 0103-0105; 0112-0114; 0126-0128
(2020/10/14)
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