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A stable and easy-to-process organic semiconductor material and its application in organic light-emitting devices

An organic semiconductor and organic technology, applied in the application field of organic electroluminescence devices, can solve the problems of insignificant performance increase, simple structure, low yield, etc.

Active Publication Date: 2019-02-05
GUANMAT OPTOELECTRONICS MATERIALS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] Document DE102016201672 discloses the use of 7-substituted indolocarbazole to obtain host materials, but the obtained materials have a simple structure, low yield, and no obvious increase in performance

Method used

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  • A stable and easy-to-process organic semiconductor material and its application in organic light-emitting devices
  • A stable and easy-to-process organic semiconductor material and its application in organic light-emitting devices
  • A stable and easy-to-process organic semiconductor material and its application in organic light-emitting devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0163] Example 1: Synthesis and preparation of compound 7N host material:

[0164] Compound 7N was prepared according to the following chemical synthesis route, and a white powder material was obtained, PL=415nm. The molecular structure was verified by mass spectrometry as shown in Table 3.

[0165]

Embodiment 2

[0166] Example 2: Synthesis and preparation of compound HT-1 hole transport material:

[0167] Compound 7N was prepared according to the following chemical synthesis route, a white powder material was obtained, PL=430nm, and the molecular structure was verified by mass spectrometry as shown in Table 3.

[0168]

Embodiment 3

[0169] Example 3: Synthesis and preparation of compound ET-9 electron transport material:

[0170] Compound ET-9 was prepared according to the following chemical synthesis route, a white powder material was obtained, PL=440nm, and the molecular structure was verified by mass spectrometry as shown in Table 3.

[0171]

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Abstract

An organic semiconductor material is characterized in that it is composed of an indolocarbazole derivative aromatic heterocycle and its molecule has high heat resistance, stability, high charge transport and good processing performance. It is applied to make organic light-emitting diodes to obtain high efficiency, low voltage and long working life.

Description

technical field [0001] The invention relates to an organic semiconductor compound and the application of the prepared organic electroluminescent device. Using a modified indolocarbazole and its derivatives containing electrophilic pyridine as the main structural element to obtain a series of asymmetrically improved organic semiconductor compounds, which can be applied to organic light-emitting OLED devices and improve the charge injection and solubility of light-emitting materials , processability, which is conducive to the large-scale production of OLED display devices. Background technique [0002] Organic semiconductor materials are new types of optoelectronic materials, and their large-scale research originated in 1977 when Hideki Shirakawa, A. Heeger and A. McDiamid jointly discovered doped polyacetylene with conductivity up to copper level. Subsequently, in 1987, C. Tang of Kodak Company invented the organic small molecule light-emitting diode (OLED), and in 1990, R. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/54H01L51/50C07D471/16C07D519/00C07F9/6561C07F7/10
CPCC07D471/16C07D519/00C07F7/0816C07F9/6561H10K85/623H10K85/654H10K50/11H10K50/15H10K50/16
Inventor 李晓常殷正凯郝望龙
Owner GUANMAT OPTOELECTRONICS MATERIALS INC
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