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Organic electroluminescent material, electronic element, and electronic device

An electroluminescent material, organic technology, applied in luminescent materials, electrical components, organic chemistry, etc.

Active Publication Date: 2021-11-23
SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing organic electroluminescent devices, the most important problems are life and efficiency. With the increase of the area of ​​the display, the driving voltage is also increased, and the luminous efficiency and current efficiency also need to be improved. Therefore, it is necessary to continue to develop new types of electroluminescent devices. materials to further enhance the performance of organic electroluminescent devices

Method used

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  • Organic electroluminescent material, electronic element, and electronic device
  • Organic electroluminescent material, electronic element, and electronic device
  • Organic electroluminescent material, electronic element, and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0253] The anode was prepared by the following process: the thickness was The ITO substrate (manufactured by Corning) was cut into a size of 40mm × 40mm × 0.7mm, and it was prepared into an experimental substrate with cathode, anode and insulating layer patterns by using a photolithography process, using ultraviolet 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.

[0254] F4-TCNQ was vacuum evaporated on the experimental substrate (anode) to form a thickness of The hole injection layer (HIL), and NPB is evaporated on the hole injection layer to form a thickness of the first hole transport layer.

[0255] PAPB is vacuum evaporated on the first hole transport layer to form a thickness of the second hole transport layer.

[0256] On the second hole transport layer, compound 1: GH-N: Ir(ppy) 3 Co-evaporation was performed at a ratio of 60:40:10% (co-evaporation rate ratio: c...

Embodiment 2～ Embodiment 89

[0260] Except that the compounds shown in Table 11 were used instead of Compound 1 when forming the light-emitting layer, organic electroluminescent devices were fabricated by the same method as in Example 1, and the prepared devices were referred to as Examples 2 to 89.

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PUM

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Abstract

The invention belongs to the technical field of organic materials, and provides a nitrogen-containing compound, an organic electroluminescent device and an electronic device. The structure of the nitrogen-containing compound is shown as a chemical formula I defined in the description.

Description

technical field [0001] The present application belongs to the technical field of organic materials, and in particular relates to an organic electroluminescent material, an electronic component and an electronic device. Background technique [0002] An organic electroluminescence device, such as an organic light emitting diode (OLED), generally includes a cathode and an anode oppositely arranged, and a functional layer arranged between the cathode and the anode. The functional layer is composed of multiple organic or inorganic film layers, and generally includes an organic light-emitting layer, a hole transport layer, an electron transport layer, and the like. When a voltage is applied to the cathode and anode, the two electrodes generate an electric field. Under the action of the electric field, the electrons on the cathode side move to the electroluminescent layer, and the holes on the anode side also move to the light-emitting layer, and the electrons and holes combine in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D519/00C09K11/06H01L51/54H01L51/50
CPCC07D519/00C09K11/06C09K2211/1033C09K2211/1044C09K2211/1059C09K2211/1007C09K2211/1011C09K2211/1077C09K2211/1081C09K2211/1085H10K85/624H10K85/615H10K85/654H10K85/657H10K85/6576H10K85/6572H10K85/6574H10K50/11
Inventor 马天天徐先彬南朋
Owner SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO LTD
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