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Carbazolyl conjugated polymer, and preparation method of electric storage device thereof

A conjugated polymer, polymer technology, applied in the direction of electrical solid device, semiconductor/solid state device manufacturing, electrical components, etc., can solve the problem of polyfluorene device turn-on voltage increase, limit carrier migration rate, raw material and manufacturing cost Advanced problems, to achieve the effect of improving thermodynamic and electrochemical stability, enhancing hole or electron transport ability, and reducing process cost

Pending Publication Date: 2021-10-26
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current electrical storage devices are relatively less studied in ternary information storage. The polyfluorene material currently used has a high injection barrier, which inhibits the injection of carriers and limits the mobility of carriers. The turn-on voltage of the device becomes larger
Moreover, the existing ternary polymer electric storage device material synthesis method is complicated, and the raw material and manufacturing costs are high

Method used

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  • Carbazolyl conjugated polymer, and preparation method of electric storage device thereof
  • Carbazolyl conjugated polymer, and preparation method of electric storage device thereof
  • Carbazolyl conjugated polymer, and preparation method of electric storage device thereof

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preparation example Construction

[0056] The present invention provides a kind of preparation method of described carbazole-based conjugated polymer, the method comprises the following steps:

[0057] Step 1, adding carbazole monomer and nitrogen-containing monomer into the solvent, heating and reacting to obtain a polymer solution;

[0058] Step 2, post-processing the polymer solution to obtain a carbazole-based conjugated polymer.

[0059] Step 1. Adding carbazole monomer and nitrogen-containing monomer into a solvent, heating and reacting to obtain a polymer solution.

[0060]The carbazole monomer is N-alkylcarbazole. The alkyl group is an alkyl group containing 3 to 31 carbon atoms, preferably an alkyl group containing 6 to 21 carbon atoms, more preferably 7-tridecyl, 8-pentadecyl and 9-heptadecyl alkyl.

[0061] Preferably, the 2 and 7 positions of the carbazole monomer have a boronic acid group or a boronic acid ester group, such as an alkyl boronic acid group, an aryl boronic acid group, an alkenyl b...

Embodiment 1

[0131] in N 2 Under the atmosphere, put 1.49g of 2,3-naphthalene dicarboxylic anhydride, 0.27g of 3,6-dibromo-1,2-phenylenediamine, and 10mL of glacial acetic acid into the reaction vessel, stir and raise the temperature to 108°C, reflux the solvent, and carry out Constant temperature reaction for 6 hours.

[0132] After the reaction, the reaction solution was cooled to room temperature, and the crude product was gradually precipitated, filtered, and washed with deionized water until neutral. The obtained crude product was put into a vacuum drying oven for drying, the temperature of vacuum drying was 85°C, the time of vacuum drying was 12 hours, and the pressure of vacuum drying was -30KPa. The crude product after drying was separated and purified by column chromatography. The stationary phase of the chromatography column was silica gel powder, and the liquid phase was a mixture of dichloromethane:petroleum ether with a volume ratio of 3:1 to obtain the nitrogen-containing mo...

Embodiment 2

[0137] The substrate layer with the ITO cathode layer was placed in deionized water, absolute ethanol, acetone, absolute ethanol, and deionized water in sequence for cleaning for 30 minutes each. After cleaning, it was stored in absolute ethanol.

[0138]The carbazole-based conjugated polymer prepared in Example 1 was dissolved in toluene to obtain a polymer solution with a concentration of 5 mg / mL. The above polymer solution was added dropwise on the cleaned cathode layer, uniformly dispersed by a homogenizer, and the toluene solvent was removed by vacuum drying to obtain an organic layer with a thickness of 90 nm.

[0139] The metal electrode Al is attached on the organic layer by vacuum evaporation method, the thickness and area of ​​the metal electrode are 300nm and 1.0mm respectively 2 . A sandwich structure electromechanical storage device of the Flash memory type is obtained, and the structure schematic diagram is as follows figure 1 shown.

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Abstract

The invention provides a carbazolyl conjugated polymer, and an electric storage device prepared by using the carbazolyl conjugated polymer as an organic layer. The device has excellent electric storage performance. The prepared electric storage device has the advantages of further reduced turn-on voltage, high switching current ratio, large storage density, quick response, repeated cyclic read-write and excellent performance. A synthesis method of the carbazolyl conjugated polymer is simple, the preparation process of the electric storage device is stable, the operation is simple, industrial production can be realized, and the prepared electric storage device shows ternary electric storage performance and has a good application prospect in the field of information storage.

Description

technical field [0001] The invention belongs to the field of new conductive materials, and in particular relates to a preparation method of a carbazole-based conjugated polymer and an electric storage device thereof. Background technique [0002] With the astonishing growth of global digital information, the development of information storage technology based on new functional materials and new storage mechanisms to improve computer processing capabilities has become a development trend today. The technology of using traditional inorganic semiconductor materials to prepare electrical storage devices has been very mature, making it fully applied in various information fields. In order to improve data storage capacity, the first method is to reduce the size of the storage unit and increase the data storage density; the second method involves the development of multi-level storage devices, which will increase the corresponding storage density, which is hundreds of millions larg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12H01L51/00H10K99/00
CPCC08G61/124C08G61/123C08G2261/12C08G2261/18C08G2261/3241C08G2261/512C08G2261/514H10K85/151Y02E10/549
Inventor 王淑红仲华张洪岩汪成白菊窦沣
Owner HEILONGJIANG UNIV
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