Aluminum oxide protection silver nanowire transparent electrode, production method and application thereof

A technology of silver nanowires and transparent electrodes, applied in cable/conductor manufacturing, equipment for manufacturing conductive/semiconductive layers, circuits, etc., can solve problems such as high price, uneven surface morphology, and complex processing technology

Active Publication Date: 2021-05-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reported graphene protective layer still cannot avoid the problems of expensive graphene itself and complicated processing technology, while materials such as zinc oxide will seriously affect the conductivity of silver nanowires, and at the same time, due to the uneven surface morphology, it will increase Absorption of light, resulting in a decline in photoelectric performance

Method used

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  • Aluminum oxide protection silver nanowire transparent electrode, production method and application thereof
  • Aluminum oxide protection silver nanowire transparent electrode, production method and application thereof
  • Aluminum oxide protection silver nanowire transparent electrode, production method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047]A glass sheet having a specification of 10 mm × 10 mm is placed on the hierarchy, and the concentration of silver nanowire ethanol is applied to the glass sheet, and the specific spin coating step is: regulating the elongate machine low speed 450 rpm rotation, During the low speed rotation, the suspension of 20 μl of silver nanowire ethanol is added to the glass sheet, and the low speed rotation is 10s, then turn to 3000 rpm high-speed rotation, rotate 30s; repeat the above-mentioned silver nanowire ethanol suspension under 450 rpm. Low-speed rotation - a high-speed rotating spin coating step 1, and the spin coated glass sheet is placed at 110 ° C for 30 min at a constant temperature platform, i.e., the preparation of a transparent electrode based on silver nanowires.

[0048]The aqueous solution of 200 ml containing 2 mmol / L nine hydrogen nitrate and 0.15 mol / L of potassium nitrate was configured as an electrolyte, heated to 75 ° C, and the silver nanowire transparent electr...

Embodiment 2

[0054]The silver nanowire ethanol suspension of 0.5 ml of concentration of 1.2 mg / ml was diluted to 50 mL, which was filtered with a nylon filter having a hole diameter 10 μm. Subsequently placed on the glass back sheet flexible Pi (10 mm × 10 mm) ), Turn on the pump to maintain 1 min. The substrate to which the filtration transfer is completed is placed at 110 ° C for 30 min on the thermostatic platform, i.e., the preparation of a transparent electrode based on silver nanowires.

[0055]The aqueous solution of 200 ml 2 mmol / L nine hydrogen nitrate and 0.15 mol / L of potassium nitrate is configured as an electrolyte, heated to 75 ° C, and the silver nanowire transparent electrode is clamped as a cathode, and the platinum electrode is used as an anode, silver | chlorine | chlorine | The silver electrode is immersed in the electrolyte, and the -1.5V operating voltage is applied by a constant voltage source, and the electrodeposition is 60 min. When the power is disconnected, the ele...

Embodiment 3

[0057]The transparent electrode based on silver nanowire was prepared using the same method as in the same manner, and a water solution containing 1 mmol / L nine hydrogen nitrate and 0.15 mol / L of potassium nitrate was configured as an electrolyte, heated to 75 ° C, and transparently transmitted the silver nanowire The platinum electrode is clamped as the cathode, the platinum electrode as an anode, silver | chlorinated electrode is immersed in the electrolyte, and the working voltage is applied to the electrolyte, and the electrodeposition is 35min, the power supply will be disconnected. The silver nanowire transparent electrode after electrodeposition is immersed in the stirring state, and the maintenance of the stirring is maintained for 20s, then annealing 150 ° C on the hot stage for 15 min, that is, the completionFigure 6 The preparation of the highlands of alumina protective highlands of silver nano-wire transparent electrodes.

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Abstract

The invention discloses an aluminum oxide protection silver nanowire transparent electrode, a production method and an application thereof. The method comprises the following steps: by taking an annealed silver nanowire transparent conductive film as a cathode, a platinum electrode as an anode, a silver / silver chloride electrode as a reference electrode and a solution containing aluminum nitrate nonahydrate as an electrolyte, electrically depositing an aluminum oxide protective layer on the silver nanowire transparent conductive film in a constant-voltage mode of a three-electrode system, rinsing, and annealing to obtain the aluminum oxide protection silver nanowire transparent electrode. According to the invention, an electro-deposition process is improved by controlling a reaction rate, aluminum oxide is accurately deposited on the surfaces of the silver nanowires without influencing a light-transmitting area, contact between the silver nanowires is promoted through the deposition process, light absorption of a coating layer is avoided through the high-flatness surface, the stability and a photoelectric property are improved, the silver nanowire protection process is greatly simplified, the production cost of the flexible transparent electrode is greatly reduced, and the development of flexible electronics is promoted.

Description

Technical field[0001]The present invention belongs to the technical field of flexible transparent electrode preparation, and more particularly to alumina protective silver nanowire transparent electrodes and preparation methods and applications thereof.Background technique[0002]In recent years, the new display industry has developed rapidly, and the form of display devices is experiencing the development of the flat panel to the fixed surface display, flexible display, and the listing, flexible display with the Samsung Galaxy Z Flip and Huawei Mate XS, flexible display The concept began to enter the spontaneous mind of the public and triggered a new round of flexible display. Flexible Active Organic Lighting Diode Display is the most mature technology currently used in flexible display, which is currently in the market growth period. In each component of flexible display, the transparent conductive film (TCF) occupies an important position and is an important part of the pixel drive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B5/14H01B17/62
CPCH01B13/0026H01B13/0016H01B5/14H01B17/62
Inventor 宁洪龙李志航姚日晖陈俊龙杨跃鑫叶倩楠曾璇陈楠泓刘泰江彭俊彪
Owner SOUTH CHINA UNIV OF TECH
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