Organic electroluminescent material with a dibenzofuran anthracene core structure, and preparation method and device thereof

A core structure and luminescent technology, which is applied in the direction of luminescent materials, electrical solid devices, electrical components, etc., can solve the problems of deep blue light luminescent material efficiency, luminescent color, and stability.

Active Publication Date: 2021-03-16
WUHAN SUNSHINE OPTOELECTRONICS TECH CO LTD
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  • Abstract
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Problems solved by technology

[0005] The object of the present invention is to provide an organic electroluminescent material with a dibenzofuran-anthracene core structure and its preparation method and device, so as to solve the problem that the efficiency, luminous color and stability of deep blue light-emitting materials are difficult to balance, so that the OLED devices have excellent comprehensive performance in terms of efficiency, thermal stability, light color, and lifetime

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  • Organic electroluminescent material with a dibenzofuran anthracene core structure, and preparation method and device thereof
  • Organic electroluminescent material with a dibenzofuran anthracene core structure, and preparation method and device thereof
  • Organic electroluminescent material with a dibenzofuran anthracene core structure, and preparation method and device thereof

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Embodiment Construction

[0087]It should be understood that the specific embodiments described herein are intended to illustrate and explain the present invention and is not intended to limit the invention.

[0088]Intermediate 1: Synthesis 1- (10-bromol-9-yl) -7-chlorine diphenyl

[0089]

[0090]S1. In a 250 ml reaction bottle, 1-bromo-7 chlorine diphenyl furan (12.16 g, 43.2 mmol), anthracene-9-boric acid (8.88 g, 40 mmol), potassium carbonate (11.06 g, 80 mmol), 120ml The volume ratio of 2: 1 toluene / ethanol mixed solvent, into nitrogen air air, then add dichloro di-tert-butyl-(4-dimethylaminophenyl) phosphorium (0.14 g, 0.20 mmol), heating By 85 ° C, the mixture was stirred for 6-12 h, then cooled to room temperature, filtered, the filtrate was concentrated, combined with the filter cake, and purified to a mixture of ethyl acetate and petroleum ether to obtain 11.34G1- (-9- Base) -7-chlorobenzofuran, yield of 75%;

[0091]S2. In a 250 mL reaction bottle, 1- (anthracene-9-yl) -7-chlorophenyl biphenyl furan (7.56 ...

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Abstract

The invention relates to the technical field of photoelectric material application, and discloses an organic electroluminescent material with a dibenzofuran anthracene core structure, and a preparation method and a device thereof. According to the organic electroluminescent material with the dibenzofuran anthracene-connected core structure, the dibenzofuran anthracene-connected core structure is subjected to specific substitution and fine regulation and control through specific functional groups, and a luminescent host material with excellent comprehensive performance is provided; the problemsof relatively strong intramolecular charge transfer and luminescence red shift caused by pi conjugation of an existing blue-light fluorescent material are effectively solved, the technical effect ofconsidering both efficiency and saturated blue light color is achieved, and the blue-light fluorescent material has a remarkable application value in blue-light devices as a luminescent main body material.

Description

Technical field[0001]The present invention belongs to the field of application technology, which specifically relates to an organic electroluminescent material having a core structure of diphenylgamovofuran and a preparation method and device thereof.Background technique[0002]Organic Light-Emitting Diode, OLEDs Because of its advantages such as self-illuminating, low-voltage, high contrast, and wide viewing, it has become one of the most developed new display technologies. After the unremitting efforts of scientific research and development, organic call lighting technology has initially entered the industrialization stage. Compared to the red light and green light material, the blue-ray material has high energy, which can be transferred to the low-energy green light, yellow light and red light or the like, and prepare a full shining organic electroluminescent device. White light OLEDs prepared based on non-doped blue material can greatly simplify the structure of the device, which ...

Claims

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Application Information

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IPC IPC(8): C07D405/04C07D405/10C07D405/14C07D409/14C07D413/14C07D417/04C07D417/14C07D471/04C07D471/14C09K11/06H01L51/54H01L51/50
CPCC07D405/14C07D471/04C07D405/10C07D409/14C07D471/14C07D417/04C07D405/04C07D413/14C07D417/14C09K11/06C09K2211/1029C09K2211/1088C09K2211/1007C09K2211/1011C09K2211/1044C09K2211/1059C09K2211/1014C09K2211/1092C09K2211/1033C09K2211/1037H10K85/615H10K85/631H10K85/626H10K85/633H10K85/654H10K85/657H10K85/6576H10K85/6574H10K85/6572H10K50/11
Inventor 穆广园庄少卿徐鹏任春婷刘迪雅
Owner WUHAN SUNSHINE OPTOELECTRONICS TECH CO LTD
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