Pattern electrode manufacturing method and pattern electrode
View Patent ↗The present invention can easily provide a method of manufacturing a pattern electrode with excellent electroconductivity and excellent transparency and a pattern electrode manufactured according to the method. The method of manufacturing a pattern electrode is characterized in that it comprises the steps of forming on a substrate an electroconductive layer containing metal nanowires, and carrying out pattern printing on the electroconductive layer employing a metal nanowire removing solution, followed by washing with water.
1. A method of manufacturing a pattern electrode, the method comprising the steps of:
forming on a substrate an electroconductive layer containing metal nanowires; and
carrying out pattern printing on the electroconductive layer employing a metal nanowire removing solution comprising a bleach-fixing solution to form a metal nanowire removing pattern at a portion of the electroconductive layer unnecessary to form a pattern electrode, followed by washing with water to remove the electroconductive layer at the portion where the metal nanowire removing pattern has been formed, thereby forming a pattern electrode on the substrate.
2. The method of manufacturing a pattern electrode of claim 1 , wherein the metal nanowires are silver nanowires.
3. The method of manufacturing a pattern electrode of claim 1 , wherein the metal nanowire removing solution contains a water soluble binder.
4. The method of manufacturing a pattern electrode of claim 1 , wherein the pattern printing is carried out employing a gravure printing method.
5. The method of manufacturing a pattern electrode of claim 1 , wherein the pattern printing is carried out employing a screen printing method.
6. The method of manufacturing a pattern electrode of claim 1 , wherein the bleach-fixing solution contains a bleaching agent and a fixing agent.
7. The method of manufacturing a pattern electrode of claim 6 , wherein the bleaching agent comprises an organic complex salt of iron (III).
8. The method of manufacturing a pattern electrode of claim 7 , wherein the organic complex salt of iron (III) comprises an iron (III)-aminopolycarboxylic acid complex salt.
9. The method of manufacturing a pattern electrode of claim 8 , wherein the aminopolycarboxylic acid is selected from the group consisting of ethylenediamine disuccinic acid (an SS isomer), N-(2-carboxylatoethyl)-L-aspartic acid, β-alanine diacetic acid, methylimino diacetic acid, ethylenediamine tetraacetic acid, diethylenetriamine pentaacetic acid, 1,3-diaminopropane tetraacetic acid, propylenediamine tetraacetic acid, nitrilotriacetic acid, cyclohexanediamine tetraacetic acid, imino diacetic acid, and glycol ether diamine tetraacetic acid.
10. The method of manufacturing a pattern electrode of claim 6 , wherein the fixing agent comprises a thiosulfate.
11. The method of manufacturing a pattern electrode of claim 10 , wherein the thiosulfate is ammonium thiosulfate.
12. The method of manufacturing a pattern electrode of claim 3 , wherein the water soluble binder comprises sodium carboxymethylcellulose.