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Novel polyheterocyclic compound and application thereof in organic light-emitting device

A compound, electroluminescence technology, applied in organic electroluminescence devices, the field of organic materials with new polyheterocyclic structures, to achieve high thermal stability and film formation stability, good thermal stability, good carrier migration rate effect

Active Publication Date: 2020-09-15
北京燕化集联光电技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the lifetime of the excited state of phosphorescent materials is long, and triplet-triplet annihilation and triplet-polaron inter-annihilation are easy to form when the triplet exciton concentration is high.

Method used

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  • Novel polyheterocyclic compound and application thereof in organic light-emitting device
  • Novel polyheterocyclic compound and application thereof in organic light-emitting device
  • Novel polyheterocyclic compound and application thereof in organic light-emitting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The synthesis of embodiment 1 intermediate M1

[0040]

[0041] The synthetic route is as follows:

[0042]

[0043] Including the following specific steps:

[0044] (1) In a 2L three-necked flask equipped with mechanical stirring, add 4-chloro-1-fluoro-2-nitrobenzene (17.5g, 0.1mol), 2-bromo-4-chloroaniline (30.8g, 0.15mol ), stirred, protected by argon, heated up to 180°C, and kept warm for more than 30 hours. During the reaction, the color of the reaction solution gradually turned red, and finally dark red. After the reaction, the organic phase was separated, extracted, dried, column chromatographed, and the solvent was spin-dried to obtain 30 g of orange-red solid M-01 with a yield of 83%.

[0045](2) In a 1L three-necked flask equipped with mechanical stirring, add M-01 (36.0g, 0.1mol), sodium sulfide nonahydrate (96g, 0.4mol), ethanol (200mL), water (100mL), nitrogen protection, Heated to reflux, reflux reaction for 3 hours, and ended the reaction. The o...

Embodiment 2

[0050] The synthesis of embodiment 2 intermediate M2

[0051]

[0052] use replace respectively Selecting a suitable material ratio, other raw materials and steps are the same as in Example 1 to obtain intermediate M2.

[0053] Product MS (m / e): 378.07; Elemental analysis (C 22 h 16 Cl 2 N 2 ): theoretical value C: 69.67%, H: 4.25%, N: 7.39%; measured value C: 69.42%, H: 4.01%, N: 7.12%.

Embodiment 3

[0054] The synthesis of embodiment 3 intermediate M3

[0055]

[0056] use replace Selecting a suitable material ratio, other raw materials and steps are the same as in Example 1 to obtain intermediate M3.

[0057] Product MS (m / e): 378.07; Elemental analysis (C 22 h 16 Cl 2 N 2 ): theoretical value C: 69.67%, H: 4.25%, N: 7.39%; measured value C: 69.43%, H: 4.00%, N: 7.11%.

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PUM

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Abstract

The invention belongs to the technical field of organic light-emitting display, and particularly relates to a novel polyheterocyclic compound and application thereof in an organic light-emitting device. The structure of the novel polyheterocyclic compound provided by the invention is shown as a formula (I). The compound has good thermal stability, and when the compound is applied to an OLED deviceand used as a green light host material, the photoelectric property of the device can be effectively improved. The OLED device containing the polyheterocyclic compound can be applied to the field ofdisplay or illumination.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescence display, and in particular relates to a novel organic material with polyheterocyclic structure and its application in organic electroluminescence (OLED) devices. Background technique [0002] The application of organic electroluminescent (OLED) materials in information display materials, organic optoelectronic materials and other fields has great research value and bright application prospects. With the development of multimedia information technology, the performance requirements of flat panel display devices are getting higher and higher. At present, the main display technologies include plasma display devices, field emission display devices and organic electroluminescent display devices (OLED). Among them, OLED has a series of advantages such as self-luminescence, low-voltage DC drive, full curing, wide viewing angle, and rich colors. Compared with liquid crystal display de...

Claims

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Application Information

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IPC IPC(8): C07D487/04C07D519/00C09K11/06H01L51/50H01L51/54
CPCC07D487/04C07D519/00C09K11/06C09K2211/1029C09K2211/1044C09K2211/1037C09K2211/1088C09K2211/1092H10K85/615H10K85/626H10K85/657H10K85/6576H10K85/6572H10K85/6574H10K50/11
Inventor 梁现丽程丹丹范洪涛段陆萌杭德余曹占广班全志陈婷
Owner 北京燕化集联光电技术有限公司
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