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Nitrogen-containing compounds, organic electroluminescent devices and electronic devices

A nitrogen compound and electroluminescence technology, applied in the field of organic materials, can solve the problems of poor stability, few types, and not enough to meet actual needs, and achieve the effects of long life, strong electron donating ability, and increasing glass transition temperature.

Active Publication Date: 2021-10-08
SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing blue phosphorescent materials have few types and poor stability, so the development of such materials is of great significance
Although the blue light materials disclosed in patents CN108129332A, US20190074449A and CN109651174A have improved luminous characteristics, they are not enough to meet actual needs

Method used

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  • Nitrogen-containing compounds, organic electroluminescent devices and electronic devices
  • Nitrogen-containing compounds, organic electroluminescent devices and electronic devices
  • Nitrogen-containing compounds, organic electroluminescent devices and electronic devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0167] Preparation of blue organic electroluminescent devices by the following method

[0168] Set the thickness to The ITO substrate (manufactured by Corning) was cut into a size of 40mm (length) × 40mm (width) × 0.7mm (thickness), and it was prepared into an experimental substrate with cathode, anode and insulating layer patterns by using a photolithography process. Ozone and O 2 :N 2 Plasma surface treatment was performed to increase the work function of the anode (experimental substrate) and to remove scum.

[0169] Vacuum-deposit m-MTDATA (4,4',4"-tris(N-3-methylphenyl-N-phenylamino)triphenylamine) on the experimental substrate (anode) to form a thickness of The hole injection layer (HIL), and the compound NPB is vacuum-evaporated on the hole injection layer to form a thickness of hole transport layer.

[0170] Evaporate TCTA (4,4',4"-tris(carbazol-9-yl)triphenylamine) on the hole transport layer to form a thickness of electron blocking layer (EBL).

[0171] Usi...

Embodiment 2-24

[0177] Substitute Example with Compounds 3, 4, 7, 8, 28, 36, 79, 82, 83, 106, 107, 108, 116, 117, 121, 122, 124, 125, 126, 128, 133, 134, 135 Compound 1 whose light-emitting layer was co-evaporated with α,β-ADN in 1 was prepared according to the method in Example 1 to prepare a corresponding blue organic electroluminescent device.

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PUM

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Abstract

The application provides a nitrogen-containing compound represented by Chemical Formula 1, an organic electroluminescent device and an electronic device, which belong to the technical field of organic materials. The nitrogen-containing compound can improve the performance of the organic electroluminescence device.

Description

technical field [0001] The present application relates to the technical field of organic materials, in particular to a nitrogen-containing compound, an organic electroluminescent device using the nitrogen-containing compound, and an electronic device using the organic electroluminescent device. Background technique [0002] Organic electroluminescent devices, also known as organic light-emitting diodes, refer to the phenomenon that organic light-emitting materials emit light when excited by current under the action of an electric field. It is a process of converting electrical energy into light energy. Compared with inorganic light-emitting materials, organic electroluminescent diodes (OLEDs) have the advantages of active light emission, large optical path range, low driving voltage, high brightness, high efficiency, low energy consumption, and simple manufacturing process. Because of these advantages, organic light-emitting materials and devices have become one of the most...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C211/61C07D209/86C07D209/88C07D213/36C07D213/74C07D307/91C07D333/76C07D401/12C07D405/12C07D409/12C07D471/04C07F7/10C09K11/06H01L51/50H01L51/54H10K99/00
CPCC07C211/61C07D209/86C07D209/88C07D213/74C07D307/91C07D333/76C07D471/04C07D213/36C07D405/12C07D409/12C07D401/12C07F7/081C09K11/06C07C2603/94C09K2211/1011C09K2211/1014C09K2211/1029C09K2211/1088C09K2211/1092C09K2211/1044H10K85/622H10K85/626H10K85/636H10K85/633H10K85/615H10K85/654H10K85/6576H10K85/6574H10K85/40H10K85/6572H10K50/11Y02E10/549C07D211/82C07C2603/74C07C2603/50C07C2603/18C07C255/58C07C2603/90C07B2200/05H10K50/12C07C211/54H10K85/624H10K85/631H10K85/652
Inventor 杨敏马天天南朋
Owner SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO LTD
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