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Terpolymer and preparation method of electric storage device thereof

A technology of terpolymers and polymers, which is applied in the fields of electric solid-state devices, semiconductor/solid-state device manufacturing, electrical components, etc., can solve the problems of complex and difficult preparation methods, high turn-on voltage, etc., and achieve easy realization of the preparation process and industrialization production, the effect of high switching current ratio

Active Publication Date: 2020-06-30
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, among the conjugated polymer storage materials, the conjugated polymer material that functionalizes the side chain has good flexibility of the main chain, which is beneficial to the preparation and processing of the organic layer, but its turn-on voltage is high and the switching current is relatively low. As a result, the working voltage of the storage device is high and the resolution is low
The storage materials with conjugated polymers in the main chain often have too large a conjugated structure, are difficult to synthesize, and have complicated preparation methods, which are not conducive to large-scale production. Moreover, due to their high rigidity, it is difficult to form a film, which is not conducive to the preparation of devices.
For example, it is difficult to dissolve the conjugated polymer with triphenylamine as the electron donor, which increases the difficulty of device preparation.

Method used

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  • Terpolymer and preparation method of electric storage device thereof
  • Terpolymer and preparation method of electric storage device thereof
  • Terpolymer and preparation method of electric storage device thereof

Examples

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preparation example Construction

[0053] The preparation method of the carbazole-fluorene-benzimidazole terpolymer includes the following steps:

[0054] Step 1. Add the halogenated carbazole monomers, halogenated benzimidazole monomers and fluorene monomers to a solvent, and heat to react to obtain a polymer solution.

[0055] The halogenated carbazole monomer is a halogenated N-alkylcarbazole, and the alkyl group is an alkyl group containing 3 to 31 carbon atoms, preferably an alkyl group containing 6 to 21 carbon atoms, and more preferably 7 -Tridecyl, 8-pentadecyl and 9-heptadecyl.

[0056] Preferably, the 2 and 7 positions of the halogenated carbazole monomer are substituted by halogen, and the halogen is selected from chlorine, bromine, and iodine, preferably bromine or iodine.

[0057] The carbazole group has good hole transport properties, at the same time, it has active modification points, and the structure has strong flexibility. Azo as a bridge bond can introduce other groups, and the storage of electrical...

Embodiment 1

[0129] In N 2 In the atmosphere, put 1.49 g of 2,3-naphthalenedicarboxylic acid anhydride, 0.27 g of 3,6-dibromo-1,2-phenylenediamine, and 10 mL of glacial acetic acid into the reaction vessel, stir and warm up to 108°C, the solvent refluxed, Constant temperature reaction for 6 hours.

[0130] After the reaction, the reaction solution was cooled to room temperature, and after the crude product gradually precipitated, it was filtered and washed with deionized water to neutrality. Put the obtained crude product into a vacuum drying oven for drying, the temperature of vacuum drying is 85° C., the time of vacuum drying is 12 hours, and the pressure of vacuum drying is -30KPa. The dried crude product is separated and purified by column chromatography. The stationary phase of the chromatography column is silica gel powder, and the liquid phase is dichloromethane: petroleum ether (3:1) to obtain benzimidazole monomer 1,4-di Bromo-12H-benzo[5,6]isoindolo[2,1-a]benzimidazole-12-one.

[01...

Embodiment 2

[0135] The substrate layer with the ITO cathode layer was sequentially washed in deionized water, absolute ethanol, acetone, absolute ethanol, and deionized water for 30 minutes each, and then stored in absolute ethanol after washing.

[0136] The terpolymer prepared in Example 1 was dissolved in toluene to obtain a polymer solution with a concentration of 5 mg / mL. The above polymer solution is dropped on the cleaned cathode layer, uniformly dispersed by a homogenizer, and the toluene solvent is removed by vacuum drying to obtain an organic layer with a thickness of 250 nm.

[0137] The metal electrode Al is attached to the organic layer by vacuum evaporation method. The thickness and area of ​​the metal electrode are 300nm and 1.0mm, respectively 2 . Obtain a sandwich structure organic electric storage device of Flash storage type, the structure diagram is as follows figure 1 Shown.

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Abstract

The invention provides a terpolymer and an electric storage device prepared by using the terpolymer as an organic layer. The prepared electric storage device is low in turn-on voltage, high in switchcurrent ratio, rapid in response, capable of performing repeated cyclic reading and writing, and excellent in performance. The terpolymer is simple in synthesis method and stable in electric storage device preparation process, has ternary electric storage performance, can realize industrial production, and has a good application prospect in the field of information storage.

Description

Technical field [0001] The invention belongs to the technical field of organic storage materials, and specifically relates to a terpolymer and a synthesis method thereof, and particularly relates to an electrical storage device with the polymer as an organic layer and a preparation method thereof. Background technique [0002] With the rapid development of information technology and the rapid update of electronic digital products, the demand for electrical memory chips is increasing. 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. With the increasing demand for mobile applications, the continuous development of storage technology and equipment has been continuously promoted, and the demand for storage with high capacity, good system performance, low energy consumption, smaller size and lower cost is increasing. However, a large number of materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G61/12H01L51/00H10K99/00
CPCC08G61/124C08G61/123C08G2261/122C08G2261/1412C08G2261/18C08G2261/3142C08G2261/3241C08G2261/344C08G2261/354C08G2261/512C08G2261/514C08G2261/90H10K85/111H10K85/151
Inventor 王淑红张洪岩仲华汪成张营娜
Owner HEILONGJIANG UNIV
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