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Aromatic derivative with polycyoalkane and organic electroluminescence device with derivative

A technology of aromatic derivatives and electroluminescent devices, which is applied in the field of organic electroluminescent devices, can solve the problems of light-emitting device performance degradation, luminous efficiency reduction, and driving voltage increase, so as to achieve improved luminous efficiency, stability, and voltage Reduced effect

Active Publication Date: 2019-08-30
SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Generally, when an organic electroluminescent device is driven at a high temperature, there will be problems such as an increase in driving voltage, a decrease in luminous efficiency, and a shortened lifespan, resulting in a decrease in the performance of the organic electroluminescent device

Method used

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  • Aromatic derivative with polycyoalkane and organic electroluminescence device with derivative
  • Aromatic derivative with polycyoalkane and organic electroluminescence device with derivative
  • Aromatic derivative with polycyoalkane and organic electroluminescence device with derivative

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2-5

[0156] An organic electroluminescent device was fabricated by the same method as in Example 1 except that the compounds shown in Table 1 were each used when forming the second hole transport layer (HT2).

[0157] That is, Example 2 uses Compound 2 to make an organic electroluminescent device, Example 3 uses Compound 3 to make an organic electroluminescent device, Example 4 uses Compound 4 to make an organic electroluminescent device, and Example 5 uses Compound 5 to make an organic electroluminescent device. Light-emitting device, the device performance is shown in Table 1.

Embodiment 7-9

[0179] An organic electroluminescence device was fabricated by the same method as in Example 6, except that the compounds shown in Table 2 were each used when forming the first hole transport layer (HT1).

[0180] That is, in Example 7, Compound 7 was used to fabricate an organic electroluminescent device; in Example 8, Compound 8 was used to fabricate an organic electroluminescent device; in Example 9, Compound 9 was used to fabricate an organic electroluminescent device. The properties of the organic electroluminescent device are shown in Table 2.

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Abstract

The invention relates to an aromatic derivative with polycyoalkane and an organic electroluminescence device with the derivative. The aromatic derivative structurally has a chemical formula I as shownin the specification. The compound provided by the invention is the aromatic derivative with polycyoalkane as a framework, has excellent stability and high thermal resistance, energy loss can be greatly reduced, and a stable condensed ring can be formed. By adopting the aromatic derivative with the polycyoalkane, the stability of an organic layer in the organic electroluminescence device can be improved.

Description

technical field [0001] The invention belongs to the technical field of electroluminescence, and in particular relates to an aromatic derivative containing polycyclic alkanes and an organic electroluminescent device containing the derivative. Background technique [0002] In recent years, organic electroluminescent device (OLED: Organic electroluminescent device), as a new generation of display technology, has gradually entered people's field of vision. A common organic electroluminescent device is composed of an anode, a cathode, and more than one organic layer arranged between the cathode and the anode. 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 light-emitting layer, and the electrons on the anode side also move to the light-emitting layer. The two combine to form excitons in the light-emitting layer, and the excitons are excited. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C211/54C07C211/61C07D307/91C07D333/76C07D209/86C07D209/88C07D405/12C09K11/06H01L51/50H01L51/54
CPCC07C211/54C07C211/61C07D307/91C07D333/76C07D209/86C07D209/88C07D405/12C09K11/06C09K2211/1007C09K2211/1011C09K2211/1014C09K2211/1022C09K2211/1029C09K2211/1088C09K2211/1092H10K85/623H10K85/622H10K85/615H10K85/624H10K85/631H10K85/636H10K85/626H10K85/633H10K85/6576H10K85/6574H10K85/6572H10K50/00H10K50/15
Inventor 马天天冯震杨雷李红燕沙荀姗
Owner SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO LTD
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