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Photosensitive ink compositions and transparent conductors and method of using the same

  • US 9,534,124 B2
  • Filed: 02/04/2011
  • Issued: 01/03/2017
  • Est. Priority Date: 02/05/2010
  • Status: Active Grant
First Claim
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1. An ink composition comprising:

  • a plurality of conductive nanowires, wherein the conductive nanowires are metal nanowires;

    a binding material, wherein the binding material is a crosslinkable polymer;

    a photosensitive compound selected from the group consisting of a mixture of oxy-phenyl-acetic acid 2-[2-oxo-2-phenyl-acetoxy-ethoxy]-ethyl ester and oxy-phenyl-acetic acid 2-[2-hydroxy-ethoxy]-ethyl ester, or an onium salt that is thermally degradable and is capable of causing structural damage to the metal nanowires when heated; and

    a polar solvent, wherein the metal nanowires are about 0.01-10% by weight of the ink composition, and wherein the ink composition is capable of forming a transparent conductive film comprising the metal nanowires and the photosensitive compound, both of which being dispersed in the binding material, and wherein the polar solvent has a polarity index of at least 4.

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