Electron transfer layer, organic electroluminescent device with electron transfer layer and manufacturing method thereof

An electron transport layer, organic electronics technology, applied in semiconductor/solid-state device manufacturing, electrical solid-state devices, electrical components, etc. Good film formation, good thermal stability, long life effect

Active Publication Date: 2013-02-06
SUZHOU QUINGYUE OPTOELECTRONICS TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the high evaporation temperature of alkali metals, alkaline earth metals, or their halides and oxides, it brings a series of disadvantages, such as increasing equipment costs and slowing down production beats, etc.
In addition, the Chinese patent document CN1905236A discloses an organic electroluminescent device and its manufacturin

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  • Electron transfer layer, organic electroluminescent device with electron transfer layer and manufacturing method thereof
  • Electron transfer layer, organic electroluminescent device with electron transfer layer and manufacturing method thereof
  • Electron transfer layer, organic electroluminescent device with electron transfer layer and manufacturing method thereof

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0049] The electron transport layer of the present invention is a blended electron transport layer, containing an organic electron transport material and an organometallic complex, wherein the organic electron transport material is one of the compounds with the structure of formula I or any of two or more combination,

[0050]

[0051] Formula Ⅰ

[0052] In formula I, Ar is selected from condensed aromatic hydrocarbons with 6 to 30 carbon atoms, or selected from condensed heterocyclic aromatic hydrocarbons with 6 to 30 carbon atoms; n is selected from an integer of 1 to 3.

[0053] Specifically, the compound having the structure of formula I may be of the following structure: ...

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Abstract

The invention discloses an electron transfer layer. The electron transfer layer is a blend material layer and comprises an organic electron transfer material and an organic metal complex, wherein the organic electron transfer material is one or any combination of more than two of compounds shown as formula I, in which AR is selected from sub-condensed cyclic aromatic hydrocarbons with 6-30 carbon atoms or sub-condensed heterocyclic aromatic hydrocarbons with 6-30 carbon atoms and N is an integer selected from 1 to 3. The invention further discloses an organic electroluminescent device with the electron transfer layer and a manufacturing method thereof. By a method of doping the phenylpyridinyl electron transfer material and the organic metal complex, the electron transfer layer has a relatively high electron mobility and good film formability and thermal stability; and the phenylpyridinyl electron transfer material and the organic metal complex form the electron transfer layer through vapor deposition, so that excellent performance of low voltage, long service life and high efficiency can be achieved.

Description

technical field [0001] The invention belongs to the field of organic electroluminescent devices, and in particular relates to an electron transport layer, an organic electroluminescent device containing the layer and a manufacturing method thereof. Background technique [0002] Organic light-emitting diodes, also known as organic electroluminescent devices (OLEDs), can be multilayer structures, generally including a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, and a cathode and an anode. Among them, a single organic material is often used for the electron transport layer, but OLED devices prepared with a single organic material as the electron transport layer often have high driving voltage and low efficiency, which leads to large power consumption and short life of the OLED screen. . [0003] The electron transport layer adopts two kinds of mixed materials, and it is also reported that the p...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L51/54H01L51/56
Inventor 邱勇李艳蕊吴空物
Owner SUZHOU QUINGYUE OPTOELECTRONICS TECH CO LTD
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