Boron-containing organic compound and application thereof in organic electroluminescent device

A technology of organic compounds and compounds, applied in silicon organic compounds, compounds containing elements of group 3/13 of the periodic table, organic chemistry, etc., can solve the problems of efficiency roll-off, difficult high exciton utilization rate and high fluorescence radiation efficiency, Low S1 state radiative transition rate and other issues
CN111574544AInactive Publication Date: 2020-08-25JIANGSU SUNERA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGSU SUNERA TECH CO LTD
Publication Date
2020-08-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a boron-containing organic compound and application of the boron-containing organic compound to an OLED device. The structure of the compound is shown as a general formula (1), the whole molecule of the compound is a large rigid structure, and the introduction of substituent groups reduces the planarity of a material, so the steric hindrance of the material is increased, the material is not easy to rotate, and a three-dimensional space structure is more stable; and therefore, the compound has higher glass transition temperature and molecular thermal stability. In addition, the HOMO and LUMO distribution positions of the compound are separated from each other, so the compound has appropriate HOMO and LUMO energy levels; and therefore, after the compound is applied to the OLED device, the luminous efficiency of the device can be effectively improved, and the service life of the device can be effectively prolonged.
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Description

technical field

[0001] The invention relates to the technical field of semiconductors, in particular to a boron-containing organic compound and its application in organic electroluminescent devices. Background technique

[0002] Organic electroluminescent (OLED: Organic Light Emission Diodes) device technology can be used to manufacture new display products and also can be used to make new lighting products, which is expected to replace the existing liquid crystal display and fluorescent lighting, and has a wide application prospect.

[0003] The OLED light-emitting device is like a sandwich structure, including electrode material film layers, and organic functional materials sandwiched between different electrode film layers. Various functional materials are superimposed on each other according to the application to form an OLED light-emitting device. As a current device, when a voltage is applied to the electrodes at both ends of the OLED light-emitting device, and the pos...

Claims

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