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A kind of cellulose electron transport polymer and its preparation method and application

An electron transport, polymer technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of cellulose and its derivatives that have not been reported

Active Publication Date: 2020-12-04
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, studies on cellulose and its derivatives as electron transport materials for organic optoelectronic devices are still unreported

Method used

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  • A kind of cellulose electron transport polymer and its preparation method and application
  • A kind of cellulose electron transport polymer and its preparation method and application
  • A kind of cellulose electron transport polymer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] Example 1 Synthesis of the compound of formula I-1

[0092] In this embodiment, the structural formula of the compound of formula I-1 is:

[0093]

[0094] The preparation method of the above-mentioned compound of formula I-1 comprises the following steps:

[0095] Step 1: Synthesis of intermediate formula, bis[4-(dimethylamino)phenyl]-4-hydroxyphenylphosphine

[0096] 1 serving of starting material Dissolve 2 parts of p-iodophenyldimethylamine in 250 mL of tetrahydrofuran solution, under argon protection, cool down to -75°C, stir at this temperature for 60 minutes, and add 4 parts of tert-butyllithium n-hexane solution dropwise In the reaction system, the reaction system was then warmed to room temperature and stirred for 60 minutes;

[0097] Then the reaction system was placed at -75 ° C and stirred for 30 minutes, 1 part of phosphorus trichloride n-pentane solution was added dropwise to the reaction system, and after warming up to room temperature, the react...

Embodiment 2

[0107] Example 2 Synthesis of compound of formula I-2

[0108] In the present embodiment, the structural formula of the compound of formula I-2 is:

[0109]

[0110] Step 1: Synthesis of intermediate bis[4-(dimethylamino)phenyl]-4-hydroxyphenylphosphine

[0111] Combine 2 servings of starting material 4 parts of p-iodophenyldimethylamine were dissolved in 250mL of tetrahydrofuran solution, protected by argon, cooled to -75°C, stirred at this temperature for 120 minutes, 8 parts of tert-butyllithium n-hexane solution was added dropwise In the reaction system, the reaction system was subsequently warmed to room temperature and stirred for 1200 minutes;

[0112] Then the reaction system was placed at -75 ° C and stirred for 30 minutes, 2 parts of phosphorus trichloride n-pentane solution was added dropwise to the reaction system, and after warming up to room temperature, the reaction was performed for 18 hours;

[0113] Then add 6 parts of hydrogen peroxide to the above ...

Embodiment 3

[0122] Synthesis of embodiment 3 formula Ⅱ-1 compound

[0123] In the present embodiment, the structural formula of the compound of formula II-1 is:

[0124]

[0125] The preparation method of above-mentioned formula II-1 compound comprises the steps:

[0126] Step 1: Synthesis of intermediate 4-((4-dimethylamino)phenyl)sulfone)phenol

[0127] 1 part of starter Dissolve 1 part of p-iodophenyldimethylamine and 0.1 part of cesium carbonate in 250 mL of tetrahydrofuran solution, under argon protection, stir and heat up to reflux, and react for 12 hours; then add 2 parts of hydrogen peroxide to the above solution, and stir at room temperature After 60 minutes, the reaction was stopped, and after the solvent was removed, the intermediate 4-((4-dimethylamino)phenyl)sulfone)phenol was obtained as a white powder through column separation and purification, with a yield of 75%.

[0128] Mass spectrum [M] + : 275.08; 1 H NMR (CDCl 3 ): δ (ppm) = 7.82 (d, J = 8.82Hz, 2H), 7.32...

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Abstract

The invention relates to the technical field of electron transport materials for organic photoelectric devices, and discloses a cellulose electron transport polymer as well as its preparation method and application. The structural formula of the cellulose electron transport polymer is that the cellulose electron transport polymer is used for preparing electron transport materials of organic electroluminescent diodes and cathode interface materials of organic solar cells. The TEMPO oxidized cellulose electron transport polymer proposed in the present invention introduces functional groups with electron transport properties into the cellulose side chain, regulates the solubility, film-forming properties and electron transport properties of cellulose and its derivatives, and expands its optoelectronic properties. new function. From the perspective of the application of the cellulose electron transport polymer of the present invention, the maximum efficiency of the organic electroluminescent diode prepared by using it is as high as 6.88cd / A, and the maximum brightness is as high as 21500cd / m 2 , and the external quantum efficiency is nearly 6%, both of which have achieved remarkable technical effects. The photoelectric conversion efficiency of the organic solar cells prepared by applying the same reaches about 8.6% to 15.4%, and the effect is very excellent.

Description

technical field [0001] The present invention relates to the technical field of electron transport materials for organic optoelectronic devices, and more particularly, to a cellulose electron transport polymer and a preparation method and application thereof. Background technique [0002] With the rapid development of information technology, traditional inorganic semiconductor devices have been unable to meet various needs in the application field due to their complex preparation process and material selection limitations. Optoelectronic devices have become a research hotspot in the field of optoelectronic devices. [0003] For organic optoelectronic devices, research has mainly focused on organic light-emitting diodes (OLEDs), organic solar cells (OSCs), and perovskite cells (PSCs), in which the efficient transport of electrons in the devices is a direct The key to determining the performance of the device is good or bad. In view of this, some well-known universities and r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B15/06H01L51/50H01L51/54H01L51/42H01L51/46
CPCC08B15/06H10K30/00H10K50/16Y02E10/549
Inventor 欧阳新华刘燕军张兴业胡会超陈礼辉
Owner FUJIAN AGRI & FORESTRY UNIV
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