Preparation method for flexible and transparent composite ionic liquid gel conductive electrode

A technology of transparent conductive electrodes and composite ions, which is applied in semiconductor/solid-state device manufacturing, circuits, photovoltaic power generation, etc., can solve the problems of complex preparation process of silver nanowires, high process cost, and reduced conductivity, so as to achieve stable properties and equipment Simple, easy-to-use effects

Active Publication Date: 2015-12-09
BEIJING NATURE STONE SCI TECH DEVP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of silver nanowires is complicated, and it is easy to be vulcanized and reduce the conductivity.
Therefore, it is urgent to develop a new type of flexible transparent electrode, which can not only solve the problems of resource scarcity and high process cost, but also meet the requirements of long-term use.

Method used

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  • Preparation method for flexible and transparent composite ionic liquid gel conductive electrode

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Embodiment 1

[0032] (1) Preparation method of transparent porous polymer network

[0033] The monomer acrylamide, the initiator potassium persulfate, the crosslinking agent N,N-methylenebisacrylamide, and the porogen sodium bicarbonate are dissolved in water at a weight ratio of 1000 / 10 / 30 / 5 by weight (acrylamide / The weight ratio of water is 150 / 1000), stir to a uniform state. Then, it reacts to form a gel under heating at 80°C, and is soaked in an acidic solution of pH=5 to remove sodium bicarbonate to obtain a transparent porous polymer gel. This type of porous gel is used in the next step to prepare an ionic liquid gel transparent electrode.

[0034] (2) Preparation method of composite ionic liquid gel transparent electrode with enhanced mechanical properties

[0035] The transparent porous polymer gel formed in step (1) is immersed in an aqueous solution containing 1-vinyl-3-ethylimidazole dinitrile amine salt, potassium persulfate, and N,N-methylenebisacrylamide (1 -The weight ratio of vi...

Embodiment 2

[0041] (1) Preparation method of transparent porous polymer network

[0042] Monomer methyl methacrylate, initiator benzophenone, cross-linking agent polyethylene glycol dimethacrylate, porogen polyethylene glycol (molecular weight 600) in a weight ratio of 1000 / 20 / 20 / 10 The ratio is dissolved in acetone (the weight ratio of methyl methacrylate / acetone is 200 / 1000), and stirred to a uniform state. Then, it reacts to form a gel under 255nm ultraviolet light irradiation, and is soaked in acetone to remove polyethylene glycol to obtain a porous polymer gel. This type of porous gel is used in the next step to prepare an ionic liquid gel transparent electrode.

[0043] (2) Preparation method of composite ionic liquid gel transparent electrode with enhanced mechanical properties

[0044] Soak the porous polymer gel formed in step (1) in an ethanol solution containing N-vinylpyridine tetrafluoroborate, benzophenone, and polyethylene glycol dimethacrylate (N-vinylpyridine The weight ratio ...

Embodiment 3

[0050] (1) Preparation method of transparent porous polymer network

[0051] Sodium alginate and porogen silica gel are dispersed in water at a weight ratio of 1000 / 10, and stirred to a uniform state. Coat the above dispersion evenly on polytetrafluoroethylene, then soak it in a 5% calcium chloride aqueous solution to react for 2 minutes to form a gel, and then treat it with hydrofluoric acid to obtain a porous polymer gel. This type of porous gel Used in the next step to prepare ionic liquid gel transparent electrode.

[0052] (2) Preparation method of composite ionic liquid gel transparent electrode with enhanced mechanical properties

[0053] Soak the porous polymer gel formed in step (1) in an aqueous solution containing tributylvinylammonium (trifluoromethanesulfonyl) imide salt, ammonium persulfate, and N,N-methylenebisacrylamide ( The weight ratio of tributylvinylammonium (trifluoromethanesulfonyl) imide salt / ammonium persulfate / N,N-methylenebisacrylamide / water is 1000 / 10 / 20...

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Abstract

The invention relates to a preparation method for a flexible and transparent composite ionic liquid gel conductive electrode. In the composite ionic liquid gel conductive electrode disclosed by the invention, a polymer monomer and an ionic liquid monomer form a flexible and transparent polymer network framework, and the conductivity of the composite ionic liquid gel conductive electrode is improved by introducing a conductive nano material. The invention also discloses a preparation method of the composite ionic liquid gel for the flexible and transparent electrode. In the flexible and transparent composite ionic liquid gel conductive electrode provided by the invention, a flexible and transparent substrate is not required to beintroduced, the mechanical property is excellent, and the defects of poor adhesiveness, poor chemical stability of the substrate and low temperature resistance caused by poor matching of the substrate and a conductive thin film in the traditional flexible and transparent electrode technology are overcome; the preparation method has the characteristics of simplicity in process, low cost and long-term stability; and moreover, the resistance of the composite ionic liquid gel can be adjusted, and thus, the transparent electrode is particularly suitable for fabrication of a wearable electronic device, a flexible display screen, a solar cell, a thin film transistor and an organic electroluminescence (EL) panel.

Description

Technical field [0001] The invention belongs to the field of electronic device preparation and application, and relates to a method for preparing a flexible transparent conductive electrode by using a composite ionic liquid gel. Background technique [0002] Flexible transparent electrode occupies a pivotal position in the development of electronics and optoelectronics industry, and is an indispensable optoelectronic functional material for the preparation of many electronic and optoelectronic components. At present, flexible transparent electrodes are mainly used to prepare conductive thin films on transparent organic polymer substrates by sol-gel method, chemical vapor deposition, vacuum evaporation deposition, sputtering deposition, pulsed laser deposition, etc. (JALewisetal.Science, 323, 1590 -1593 (2009); RB Kaneretal. Science, 335, 1326-1330 (2012); DBJanesetal. Nature Nanotech, 2, 378-384 (2007); Y. Cuietal. NatureNanotech, 8, 421-425 (2013)). However, this method has an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/48H01L51/56H01L51/44H01L51/52
CPCH10K71/60H10K30/82H10K50/805Y02E10/549
Inventor 江雷刘洪亮苏彬
Owner BEIJING NATURE STONE SCI TECH DEVP
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