Asymmetrically substituted phenanthroline-based organic electron transport material as well as preparation and application thereof

A technology for transporting materials and organic electrons, applied in the fields of luminescent materials, organic chemistry, circuits, etc., can solve the problems of low molecular weight, low LUMO, etc., and achieve the effect of improving solubility, low LUMO, high electron injection and transfer electron mobility

Active Publication Date: 2021-03-05
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In general, it is challenging to design high-purity, high-performance, high-stable OLED electron transport materials, especially those with low molecular weight, low LUMO, and high glass transition temperature (T g ) and high electron mobility characteristics

Method used

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  • Asymmetrically substituted phenanthroline-based organic electron transport material as well as preparation and application thereof
  • Asymmetrically substituted phenanthroline-based organic electron transport material as well as preparation and application thereof
  • Asymmetrically substituted phenanthroline-based organic electron transport material as well as preparation and application thereof

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Experimental program
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Effect test

Embodiment 1

[0034] The structural formula of the organic molecular electron transport material of the present embodiment is as follows:

[0035]

[0036] The preparation method of the organic molecular electron transport material TRZ-Phen-TPO of the present embodiment comprises the following steps:

[0037] Step 1, the preparation of (3-(8-bromo-1,10-phenanthroline-3-yl)phenyl)diphenylphosphine oxide (1)

[0038]

[0039] Under nitrogen atmosphere, the catalyst Pd(OAc) was quickly 2 (45mg, 0.198mmol) and the ligand tricyclohexylphosphine (110mg, 0.396mmol) were added to diphenyl (3-(4,4,5,5-tetramethyl-1,3,2-dioxabor Alkyl-2-yl)phenyl)phosphine oxide (4.0g, 9.89mmol), 3,8-dibromo-1,10-phenanthroline (3.34g, 9.89mmol), Na 2 CO 3In a mixture of aqueous solution (2M, 20mL, 40mmol), ethanol (20mL) and toluene (100mL), the reaction was heated at 90-100°C for 12h, and the reaction progress was confirmed by TLC. After the reaction was completed, it was cooled to room temperature and add...

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Abstract

The invention belongs to the technical field of organic electron transport materials, and discloses an asymmetrically substituted phenanthroline-based organic electron transport material as well as preparation and application thereof. The structure of the organic electron transport material is as shown in a formula I in the specification. The invention also discloses a preparation method of the organic electron transport material. The organic electron transport material disclosed by the invention is simple in synthesis method and easy to purify; the organic electron transport material has thecharacteristics of low molecular weight, high thermal stability, high glass-transition temperature, good electron injection performance, good electron mobility and high triplet state energy level. Theorganic electron transport material is used for preparing photoelectric devices.

Description

technical field [0001] The invention belongs to the technical field of organic small molecule electron transport materials, and specifically relates to an asymmetrically substituted phenanthroline-based organic electron transport material and its preparation method and application. The phenanthroline derivative of the present invention is used as an organic electron transport material, has the characteristics of low molecular weight, high glass transition temperature and high triplet energy level, and is used to prepare optoelectronic devices such as organic light emitting diodes after doping. Background technique [0002] Organic light-emitting diodes (OLEDs) have attracted extensive attention from both academia and industry for the realization of flexible, high-contrast and ultrathin and lightweight flat-panel displays as well as next-generation environmentally friendly solid-state lighting. Among them, the electron transport material assists the injection of electrons fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F9/6561C09K11/06H01L51/50H01L51/54
CPCC07F9/65616C09K11/06C09K2211/1014C09K2211/1044C09K2211/1059H10K85/654H10K85/6572H10K50/11H10K2101/40H10K50/165
Inventor 朱旭辉陈玲玲彭俊彪
Owner SOUTH CHINA UNIV OF TECH
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