Transparent conductor, method for preparing the same, and optical display including the same
A transparent conductor, a method of fabricating the same, and an optical display, the transparent conductor including a base layer; and a conductive layer on the base layer, the conductive layer including metal nanowires and a matrix, wherein the matrix is prepared from a matrix composition, the matrix composition including inorganic hollow particles, a fluorine-containing monomer, or a mixture thereof.
1. A transparent conductor, comprising:
a base layer; and
a conductive layer on the base layer, the conductive layer including metal nanowires and a matrix,
wherein:
the matrix is prepared from a matrix composition, the matrix composition including inorganic hollow particles and a fluorine-containing monomer, and
the transparent conductor has a transmissive b* value of about 1.0 or less.
2. The transparent conductor as claimed in claim 1 , wherein:
the inorganic hollow particles have a refractive index of about 1.4 or less.
3. The transparent conductor as claimed in claim 1 , wherein the inorganic hollow particles are included in the matrix composition in an amount of about 10 wt % to about 70 wt %, in terms of solid content.
4. The transparent conductor as claimed in claim 1 , wherein:
the inorganic hollow particles include an oxide, a carbide, or a nitride of at least one of silicon, aluminum, magnesium, lithium, zirconium, or zinc.
5. The transparent conductor as claimed in claim 1 , wherein:
the matrix composition includes about 6 wt % or less of fluorine atoms, in terms of solid content.
6. The transparent conductor as claimed in claim 1 , wherein the matrix composition includes:
about 40 wt % to about 80 wt % of the inorganic hollow particles and the fluorine-containing monomer;
about 15 wt % to about 55 wt % of a binder; and
about 0.1 wt % to about 5 wt % of an initiator, all wt % being in terms of solid content.
7. The transparent conductor as claimed in claim 1 , wherein the metal nanowires include silver nanowires.
8. The transparent conductor as claimed in claim 1 , further comprising at least one of an anticorrosive layer on an upper surface or a lower surface of the base layer, an antiglare coating layer on an upper surface or a lower surface of the base layer, an adhesion promoting layer on an upper surface or a lower surface of the base layer, or an oligomer elution prevention layer on an upper surface or a lower surface of the base layer.
9. The transparent conductor as claimed in claim 1 , wherein the matrix composition further includes:
a tri-functional monomer, and
a polyfunctional monomer, the polyfunctional monomer including a penta-functional monomer or a hexa-functional monomer.
10. The transparent conductor as claimed in claim 9 , wherein the tri-functional monomer includes a (meth)acrylate-based monomer.
11. The transparent conductor as claimed in claim 9 , wherein the tri-functional monomer includes an alkoxylated (meth)acrylate-based monomer.
12. The transparent conductor as claimed in claim 9 , wherein the matrix composition further includes at least one of an adhesion promoter, a UV absorber, a thickening agent, and a dispersant.
13. The transparent conductor as claimed in claim 9 , wherein a weight ratio of the penta-functional monomer or hexa-functional monomer to the tri-functional monomer is 1:1 to 5:1.
14. A method of fabricating a transparent conductor, the method comprising:
forming a metal nanowire network layer on a base layer; and
forming a conductive layer on the metal nanowire network layer using a matrix composition, the matrix composition including inorganic hollow particles and a fluorine-containing monomer,
wherein the transparent conductor has a transmissive b* value of about 1.0 or less.
15. The method as claimed in claim 14 , wherein the matrix composition further includes:
a tri-functional monomer, and
a polyfunctional monomer, the polyfunctional monomer including a penta-functional monomer or a hexa-functional monomer.
16. An optical display comprising the transparent conductor as claimed in claim 1 .
17. An optical display, comprising:
a display panel;
a transparent conductor on the display panel; and
a window on the transparent conductor,
wherein the transparent conductor includes the transparent conductor as claimed in claim 1 .
18. The optical display as claimed in claim 17 , wherein the display panel includes a liquid crystal display panel, an organic light emitting diode display panel, or a light emitting diode display panel.
19. The transparent conductor as claimed in claim 1 , wherein:
the matrix composition includes the fluorine-containing monomer, and
the fluorine-containing monomer is represented by one of the following Formulae 1 to 18:
20. The method as claimed in claim 14 , wherein:
the matrix composition includes the fluorine-containing monomer, and
the fluorine-containing monomer is represented by one of the following Formulae 1 to 18: