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Method for preparing copper nano grid transparent electrode based on gas phase reduction of copper oxide

A transparent electrode, copper oxide technology, applied in heat treatment equipment, circuits, electrical components, etc., can solve the problems of easy breakage of reactive fibers, morphology damage, etc., to achieve excellent reduction effect, safe method, guaranteed transmittance and The effect of conductivity

Active Publication Date: 2019-04-26
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new technology allows for better control on how fine metal fibers can be made while maintain their shape or quality. Unlike previous methods which were sensitive towards changes caused by atmospheric gases, this innovation uses special materials called plasma spun polyester (PES) instead of traditional organics used in making these metallized fibrous structures. These PES threads have tiny holes filled with an insulating material like ceramic powder mixed into it. When exposed to certain chemical substances such as ethanol, they lose some of them due to decomposition reactions between oxygen atoms at high temperatures. To prevent damage from decomposable molecules released when removing the coating layer, another type of film called titania was added afterwards beforehand. Overall, this technology improves upon existing techniques and provides more precise results than previously possible.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the efficiency and quality of making highly reflective coatings made from metals like gold, Silver, and other alloys while reducing costs associated with current processes involving expensive equipment and complicated procedures.

Method used

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  • Method for preparing copper nano grid transparent electrode based on gas phase reduction of copper oxide
  • Method for preparing copper nano grid transparent electrode based on gas phase reduction of copper oxide
  • Method for preparing copper nano grid transparent electrode based on gas phase reduction of copper oxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Preparation of PVP-(CuNO 3 ) 2 The composite nanowires were oxidized at 480°C for 3 hours, and the oxidized copper nanofibers were reduced by ethanol gas phase to obtain a copper nanogrid transparent electrode. figure 1 The flow chart for the preparation of copper nanogrid transparent electrodes.

[0028] First configure the electrospinning precursor solution: dissolve 0.68g of PVP powder in 8ml of absolute ethanol, and stir evenly with a magnetic stirrer. Then add 0.39g (CuNO 3 ) 2 •3H 2 O particles, continue to stir. At the same time, 1ml of glacial acetic acid was slowly added dropwise to help dissolve, and glacial acetic acid was used as a spinning aid. Stir the solution at room temperature until it becomes transparent and viscous, draw up the prepared spinning precursor solution with a 2.5ml medical syringe, and place the syringe into the electrospinning injection device. Adopt 12KV positive high voltage, 10cm curing distance, 0.075mm / min injection speed, wh...

Embodiment 2

[0032] Preparation of PVP-(CuNO 3 ) 2 The composite nanowires were oxidized at 450°C for 3.5 hours, and the copper nanofibers were oxidized by gas phase reduction with ethanol to obtain a copper nanogrid transparent electrode. figure 1 The flow chart for the preparation of copper nanogrid transparent electrodes.

[0033] First configure the electrospinning precursor solution: dissolve 0.68g of PVP powder in 8ml of absolute ethanol, and stir evenly with a magnetic stirrer. Then add 0.39g (CuNO 3 ) 2 •3H 2 O particles, continue to stir. At the same time, 1ml of glacial acetic acid was slowly added dropwise to help dissolve, and glacial acetic acid was used as a spinning aid. Stir the solution at room temperature until it becomes transparent and viscous, draw up the prepared spinning precursor solution with a 2.5ml medical syringe, and place the syringe into the electrospinning injection device. Adopt 12KV positive high voltage, 10cm curing distance, 0.075mm / min injection ...

Embodiment 3

[0036] Preparation of PVP-(CuNO 3 ) 2 The composite nanowires were oxidized at 500°C for 2.5h, and the copper nanofibers were oxidized by gas phase reduction with ethanol to obtain a copper nanogrid transparent electrode. figure 1 The flow chart for the preparation of copper nanogrid transparent electrodes.

[0037] First configure the electrospinning precursor solution: dissolve 0.68g of PVP powder in 8ml of absolute ethanol, and stir evenly with a magnetic stirrer. Then add 0.39g (CuNO 3 ) 2 •3H 2 O particles, continue to stir. At the same time, 1ml of glacial acetic acid was slowly added dropwise to help dissolve, and glacial acetic acid was used as a spinning aid. Stir the solution at room temperature until it becomes transparent and viscous, draw up the prepared spinning precursor solution with a 2.5ml medical syringe, and place the syringe into the electrospinning injection device. Adopt 12KV positive high voltage, 10cm curing distance, 0.075mm / min injection speed...

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Abstract

The invention relates to the technical field of semiconductors, in particular to a method for preparing a copper nano grid transparent electrode based on gas phase reduction of copper oxide. The method comprises the following steps: preparing a spinning precursor solution by using copper nitrate, preparing a copper nitrate composite nanowire through electrostatic spinning, and heating and oxidizing the prepared copper nitrate composite nanowire to obtain copper oxide nanofiber; finally, putting the obtained copper oxide nanofiber into an enclosed reaction kettle, wherein the enclosed reactionkettle contains gaseous alcohols, and then placing the reaction kettle at 200-250 DEG C for reaction for 3-5h to obtain a copper nano grid transparent electrode; the method for reducing the copper oxide nanofiber by the solvent gas phase not only keeps the appearance of the nanofiber, but also completely reduces the copper oxide; the problem that a nano grid transparent electrode is easy to breakin the prior alcohol reduction process is solved; the method has the advantages of safety, low cost and excellent reduction effect, ensures the transmittance and the conductivity, and finally obtainsthe copper grid transparent electrode with excellent performance.

Description

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Claims

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Application Information

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Owner TAIYUAN UNIV OF TECH
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