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Boron-nitrogen compound, organic electroluminescent composition and organic electroluminescent device comprising same

A compound, boron-nitrogen technology, applied in electric solid-state devices, compounds containing elements of group 3/13 of the periodic table, organic chemistry, etc., can solve problems such as wide emission spectrum

Pending Publication Date: 2022-06-14
JIHUA LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In order to overcome the defect that the emission spectrum of the existing green and red organic electroluminescent materials is too wide, the present disclosure provides an organic compound, a composition and the Organic Electroluminescent Devices

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  • Boron-nitrogen compound, organic electroluminescent composition and organic electroluminescent device comprising same
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  • Boron-nitrogen compound, organic electroluminescent composition and organic electroluminescent device comprising same

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[0147] The compound of formula I described in the present disclosure can be prepared according to conventional chemical synthesis methods in the art, and its steps and conditions can refer to the steps and conditions of similar reactions in the art. The present disclosure provides a preparation method of compounds represented by formulas (I and II, which may include the following schemes:

[0148]

[0149] in

[0150] The present disclosure also provides an organic electroluminescent device comprising an anode, an emission layer, an optional hole injection layer, an optional hole transport layer, an optional electron transport layer, an optional electron injection layer, and a cathode , wherein at least one layer of the light-emitting layer, the electron injection layer, the electron transport layer, the hole transport layer, and the hole injection layer contains the above-mentioned boron nitride compound. The organic electroluminescent devices of the present disclosure ...

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Abstract

The invention provides a boron-nitrogen compound as shown in a formula I or II, a composition containing the compound and application of the boron-nitrogen compound and the composition in the field of organic electroluminescence. The present disclosure also provides a process for the preparation of boron-nitrogen compounds of Formula I or II. The organic electroluminescent device prepared from the compound or the composition provided by the invention can realize efficient green light and red light electroluminescence with narrow spectrum emission.

Description

technical field [0001] The present invention belongs to the technical field of organic electroluminescence, and in particular relates to a boron-nitrogen compound and a method for synthesizing the same, an organic electroluminescence composition and an organic electroluminescence device comprising the aforementioned compound or composition. Background technique [0002] Organic electroluminescence technology has shown great application prospects in the fields of full-color display and solid-state white light illumination, and has received extensive research and attention in the scientific research and industrial circles. Organic small-molecule optoelectronic materials have been widely used as high-performance electroluminescent materials due to their clear structure, easy modification, and simple purification and processing. At present, traditional fluorescent dye molecules often have high photoluminescence quantum yields, but electroluminescence devices based on these fluor...

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Application Information

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IPC IPC(8): C07F5/02C09K11/06H01L51/54H01L51/50
CPCC07F5/027C09K11/06C09K2211/1007C09K2211/1014C09K2211/1029C09K2211/1044C09K2211/1055H10K85/622H10K85/626H10K85/636H10K85/654H10K85/657H10K85/6572H10K50/12H10K50/11H10K85/00C07F5/02
Inventor 王悦梁宝炎毕海
Owner JIHUA LAB