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An organic compound containing fluorene and its application in organic electroluminescent devices

An organic compound and luminescent technology, applied in organic chemistry, electrical solid-state devices, luminescent materials, etc., can solve very different problems

Active Publication Date: 2020-08-21
JIANGSU SUNERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, for the collocation of OLED devices with different structures, the photoelectric functional materials used have strong selectivity, and the performance of the same material in devices with different structures may be completely different.

Method used

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  • An organic compound containing fluorene and its application in organic electroluminescent devices
  • An organic compound containing fluorene and its application in organic electroluminescent devices
  • An organic compound containing fluorene and its application in organic electroluminescent devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] Embodiment 1: the synthesis of intermediate A1:

[0107] synthetic route:

[0108]

[0109]

[0110] Add 11.8g of 1,4-dibromobenzene (0.05mol) and 1.2g of Mg powder (0.05mol) and 60ml of tetrahydrofuran to a 250ml four-necked flask under nitrogen atmosphere, and heat to reflux for 4 hours. The reaction is complete and the format Reagent;

[0111] Dissolve 9.0g of 9-fluorenone (0.05mol) in 50mL of tetrahydrofuran, add the above-mentioned Grignard reagent dropwise, react at 60°C for 24 hours, a large amount of white Grignard salt precipitates, add saturated NHCl 4 solution until the precipitation disappears, and the Grignard salt is converted into a tertiary alcohol; after the reaction is completed, extract with 100ml ether, dry the extract with anhydrous sodium sulfate, and remove the solvent by rotary evaporation until there is no fraction to obtain the crude product of the tertiary alcohol, which is obtained as The mixed solvent of petroleum ether and dichlorom...

Embodiment 2

[0113] Embodiment 2: the synthesis of intermediate A2:

[0114] synthetic route:

[0115]

[0116]

[0117] Intermediate A2 was prepared according to the synthetic method of intermediate A1 in Example 1, the difference being that the compound bromobenzene was replaced by 1,1'-biphenyl;

[0118] Using DEI-MS to identify the compound, formula C 31 h 21 Br, detection value [M+1] + =473.31, calculated value 472.08.

Embodiment 3

[0119] Embodiment 3: the synthesis of intermediate A3:

[0120] synthetic route:

[0121]

[0122] Prepare intermediate A3 by the synthetic method of intermediate A1 among the embodiment 1, difference is to replace bromobenzene with benzene in the third step reaction;

[0123] Using DEI-MS to identify the compound, formula C 25 h 17 Br, detection value [M+1] + =397.21, calculated value 396.05.

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Abstract

The invention discloses an organic compound containing fluorene and its application in an organic electroluminescent device. The structure of the organic compound is shown in the general formula (1). The compound of the present invention has higher glass transition temperature and molecular thermal stability, suitable HOMO and LUMO energy levels, and higher Eg, and can effectively improve the photoelectric performance of OLED devices and the lifespan of OLED devices through device structure optimization.

Description

technical field [0001] The invention relates to the technical field of semiconductors, in particular to a compound material containing fluorene as a central skeleton and its application in the field of OLEDs. 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, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D209/80C07D209/94C07D491/048C07D491/153C07D491/052C07D487/04C07D491/147C07D487/14C07D498/04C07D471/04C07D497/04C07D471/14C07D495/04C07D517/04C07D519/00C09K11/06H01L51/54
CPCC09K11/06C07D209/80C07D209/94C07D471/04C07D471/14C07D487/04C07D487/14C07D491/048C07D491/052C07D491/147C07D491/153C07D495/04C07D497/04C07D498/04C07D517/04C07D519/00C09K2211/1088C09K2211/1029C09K2211/1033H10K85/657H10K85/6572
Inventor 张小庆李崇张兆超王立春唐丹丹
Owner JIANGSU SUNERA TECH CO LTD
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