Phosphine-containing fused heterocyclic compound as well as preparation method and application thereof

A technology of fused heterocycles and compounds, which is applied in the field of phosphine-containing fused heterocycles and its preparation, can solve the problems of less electron transport materials and less research accumulation of OLED devices, so as to improve electron transport capabilities, inhibit molecular stacking, and reduce drive The effect of voltage
CN110483576AActive Publication Date: 2019-11-22NINGBO LUMILAN NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO LUMILAN NEW MATERIAL CO LTD
Publication Date
2019-11-22

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Abstract

The invention provides a phosphine-containing fused heterocyclic compound as well as a preparation method and an application thereof. The phosphine-containing fused heterocyclic compound has a structure as shown in a formula I, a formula II, a formula III, a formula IV or a formula V. The phosphine-containing fused heterocyclic compound provided by the invention has double phosphorus-oxygen bonds,and an electron-withdrawing or large-volume Ar3 group and an Ar4 group are introduced; therefore, the material has a low LUMO energy level, a high electron transport capability and a high thermal decomposition temperature, can be used as an electron transport material of a photoelectric device, reduces the driving voltage of the device, improves the current efficiency, maintains thermal stabilityin the preparation and use processes of the device, and prolongs the service life of the device.
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Description

technical field

[0001] The invention belongs to the technical field of organic photoelectric materials, and in particular relates to a phosphine-containing condensed heterocyclic compound and its preparation method and application. Background technique

[0002] Organic light-emitting diode (OLED) is an organic electroluminescent device. Compared with inorganic electroluminescence, it has high brightness, fast response, wide viewing angle, simple process, high color purity, and can realize the range from blue light to red light. The advantages of full-color display and flexibility are favored by many scientists and have broad application prospects in the fields of display and lighting.

[0003] The development of OLED has a history of more than 50 years. The earliest discovery of organic electroluminescence was in 1963. Pope et al. used hundreds of volts of voltage to add organic aromatic single crystal anthracene to observe the luminescence phenomenon. However, due to the l...

Claims

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