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Photoelectric material containing xanthene structure and application of photoelectric material to OLED field

A photoelectric material, xanthene technology, applied in the direction of luminescent materials, circuits, electrical components, etc., can solve different problems and achieve the effect of not easy to gather, improve thermal stability, current efficiency and lifespan

Inactive Publication Date: 2017-08-18
VALIANT 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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  • Photoelectric material containing xanthene structure and application of photoelectric material to OLED field
  • Photoelectric material containing xanthene structure and application of photoelectric material to OLED field
  • Photoelectric material containing xanthene structure and application of photoelectric material to OLED field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1 Synthesis of Compound 1:

[0056] synthetic route:

[0057]

[0058] In a 250ml four-necked flask, under a nitrogen atmosphere, 12.3g of p-4-bromo-dibenzofuran (0.05mol) and 1.44g of Mg powder (0.06mol), 60ml of tetrahydrofuran were added, heated to reflux for 4 hours, and the reaction was complete. generate formatting reagents;

[0059] Dissolve 9.8g xanthanone (0.05mol) in 50ml tetrahydrofuran, add the above-mentioned Grignard reagent dropwise, react at 60°C for 24 hours, a large amount of white precipitate is formed, and finally add saturated NHCl 4 Grignard salt was converted into alcohol; after the reaction was completed, extracted with ether, dried and rotary evaporated, and purified on a silica gel column with a mixed solvent of petroleum ether:dichloromethane (3:2) to obtain slightly yellow compound C (88% yield); Using DEI-MS to identify the compound, formula C 25 h 16 o 3 , detection value [M+1] + = 364.85, calculated value 364.11;

[0060]...

Embodiment 2

[0063] Synthesis of Example 2 Compound 12:

[0064] synthetic route:

[0065]

[0066]

[0067] Prepared according to the synthetic method of compound 1 in Example 1, the difference is that compound E is used to replace 4-bromo-dibenzofuran;

[0068] Using DEI-MS to identify the compound, formula C 49 h 31 NO 2 S, detection value [M+1] + =697.95, calculated value 697.21.

Embodiment 3

[0069] Synthesis of Example 3 Compound 27:

[0070]

[0071] synthetic route:

[0072]

[0073] Prepared according to the synthetic method of compound 1 in Example 1, the difference is that compound F is used instead of 4-bromo-dibenzofuran;

[0074] Using DEI-MS to identify the compound, formula C 64 h 46 N 2 o 2 , detection value [M+1] + =875.18, calculated value 874.36.

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Abstract

The invention discloses an organic electroluminescent material containing a xanthene structure and application thereof. The organic electroluminescent material has the structural formula as shown in the formula (I). The organic electroluminescent material containing the xanthene structure has high glass transition temperature and molecular thermal stability and suitable HOMO and LUMO energy levels and high Eg, and through structural optimization of a device, the photoelectric property of the OLED device can be effectively improved, and the service life of the OLED device is prolonged.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent materials, in particular to an organic electroluminescent material containing a xanthene structure as a central skeleton and its application in the field of OLEDs. Background technique [0002] Organic electroluminescence (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 electr...

Claims

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Application Information

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IPC IPC(8): C09K11/06H01L51/50H01L51/54
CPCC09K11/06C09K2211/1092C09K2211/1096C09K2211/1088C09K2211/1044C09K2211/1033C09K2211/1029H10K85/6576H10K85/6574H10K85/6572H10K85/657H10K50/00
Inventor 张兆超王立春李崇
Owner VALIANT CO LTD