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Organic electroluminescent material and preparation method thereof

An electroluminescent material and electroluminescent technology, which are applied in the fields of luminescent materials, organic chemistry, chemical instruments and methods, etc., can solve problems such as unsatisfactory luminescence effect, and achieve the effects of improving luminescence performance, reducing preparation cost and simple preparation method.

Pending Publication Date: 2021-09-07
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] An embodiment of the present invention provides an organic electroluminescent material to improve the problem of unsatisfactory luminous effects of organic electroluminescent devices, thereby improving the luminous efficiency of organic electroluminescent devices and improving the overall performance of organic electroluminescent devices the goal of

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  • Organic electroluminescent material and preparation method thereof
  • Organic electroluminescent material and preparation method thereof
  • Organic electroluminescent material and preparation method thereof

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0035] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the presen...

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Abstract

The invention provides an organic electroluminescent material and a preparation method thereof, the organic electroluminescent material comprises diboron anthracene fluoride, and the diboron anthracene fluoride has an R1 group and an R2 group, wherein the R1 group is a heterocyclic compound, and the R2 group is an electron withdrawing group. The organic electroluminescent material has a relatively low single triplet state energy level difference, and also has relatively high luminous efficiency and a relatively high rapid reverse intersystem crossing constant. The preparation method and the synthesis path provided by the embodiment of the invention are simple, and the obtained product is stable. The preparation cost of the organic electroluminescent material in the display panel is effectively reduced, and the luminescent property of the luminescent material in the display panel is improved.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent materials, in particular to an organic electroluminescent material and a preparation method thereof. Background technique [0002] Organic light-emitting diodes (organic light-emitting diodes, OLEDs) have the advantages of high luminous efficiency, large viewing angle, fast response speed, wide temperature range, low energy consumption, lighter and thinner, and great application prospects. has attracted the attention of many researchers. [0003] The materials used in organic electroluminescent devices mainly include electrode materials, carrier transport materials, luminescent materials, etc. Among them, the properties of pure organic thermally activated delayed fluorescence (TADF) materials in OLED devices have an important impact on the luminous performance of OLEDs. effect. In order to improve the performance of the luminescent material, in the prior art, when preparing th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/02C09K11/06H01L51/54
CPCC07F5/027C09K11/06C09K2211/1007C09K2211/1014C09K2211/1029C09K2211/1096H10K85/631H10K85/6572H10K85/657H10K85/658H10K50/11H10K85/654H10K2101/20H10K50/12C09K2211/1018
Inventor 熊友
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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