Stabilization agents for silver nanowire based transparent conductive films
View Patent ↗Zinc salts have been found to provide anticorrosion properties when incorporated into silver nanowire containing films. Such salts may be incorporated into one of more silver nanowire containing layers or in one or more layers disposed adjacent to the silver nanowire containing layers.
1. A transparent conductive article comprising:
a transparent support;
at least one first layer disposed on the transparent support, the at least one first layer comprising a network of silver nanowires dispersed within at least one polymer binder; and
at least one zinc salt.
2. The transparent conductive article according to claim 1 , wherein the at least one zinc salt comprises zinc nitrate hydrate.
3. The transparent conductive article according to claim 1 , wherein the at least one first layer further comprises the at least one zinc salt.
4. The transparent conductive article according to claim 3 , wherein the at least one first layer further comprises at least one organic acid.
5. The transparent conductive article according to claim 4 , wherein the at least one organic acid comprises at least one of maleic acid, tetrachlorophthalic acid, trichloroacetic acid, phenylphosphonic acid, p-toluenesulfonic acid, or phthalic acid.
6. The transparent conductive article according to claim 1 , further comprising at least one second layer disposed adjacent to the at least one first layer, the at least one second layer comprising the at least one zinc salt.
7. The transparent conductive article according to claim 6 , wherein that at least one second layer is disposed on the at least one first layer.
8. The transparent conductive article according to claim 6 , wherein the at least one second layer is disposed between the at least one transparent substrate and the at least one first layer.
9. The transparent conductive article according to claim 6 , wherein the at least one first layer further comprises at least one organic acid.
10. The transparent conductive article according to claim 9 , wherein the at least one organic acid comprises at least one of maleic acid, tetrachlorophthalic acid, trichloroacetic acid, phenylphosphonic acid, p-toluenesulfonic acid, or phthalic acid.
11. The transparent conductive article according to claim 9 , wherein the at least one organic acid comprises maleic acid or p-toluenesulfonic acid.
12. A method comprising:
applying at least one first coating mixture onto a transparent support to form at least one first coated layer, the at least one first coating mixture comprising silver nanowires and at least one polymer binder; and,
applying at least one second coating mixture onto the at least one first coated layer to form at least one second coated layer, the at least one second coating mixture comprising at least one zinc salt.