Transparent conductive film and the fabrication method thereof
AssigneeNanotech & Beyond Co., Ltd.
InventorsSang Ho KIM, Chang Woo SEO, Jin E LEE
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Abstract
The present invention relates to an ultra large area nanowire transparent electrode, including a transparent insulating substrate, and a metal nanowire network, wherein Rm denoting an average sheet resistance of a nanowire transparent electrode having a width of 10 cm and a length of 2 m is 55 Ω/sq., or less, and each sheet resistance in 500 divided regions defined by evenly dividing the entire region of the nanowire transparent electrode having a width of 10 cm and a length of 2 m into an area of 2 cm×2 cm satisfies 0.5Rm to 1.5Rm.
Claims17
A nanowire transparent electrode comprising:
- a transparent insulating substrate;
- and
- a metal nanowire network;
- wherein the nanowire transparent electrode satisfies Relational Expression 1 and Relational Expression 2:
- Rm≤55 Ω/sq. wherein (Relational Expression 1)
- in Relational Expression 1, Rm is an average sheet resistance of a nanowire transparent electrode having a width of 10 cm and a length of 2 m;
- 0.5Rm≤Rloc(i)≤1.5Rm, wherein (Relational Expression 2)
- in Relational Expression 2, Rloc denotes a sheet resistance in one divided region out of 500 divided regions defined by evenly dividing the entire region of the nanowire transparent electrode having a width of 10 cm and a length of 2 m into an area of 2 cm×2 cm, and Rloc(i) denotes a sheet resistance of a divided region corresponding to i in sequentially numbered 500 divided regions, wherein i is a natural number of 1 to 500.
A manufacturing method fora nanowire transparent electrode comprising,
- applying a wire dispersion comprising a metal nanowire, an organic binder, and a solvent that dissolves the organic binder to a transparent insulating substrate;
- volatilizing the solvent;
- and
- light sintering the transparent insulating substrate with the wire dispersion by irradiating with filtered light, wherein the filtered light is a third spectrum obtained by removing a first spectrum from a second spectrum;
- wherein the first spectrum is an ultraviolet-visible light absorption spectrum of a transparent insulating substrate;
- and
- wherein the second spectrum is an ultraviolet-visible light absorption spectrum of a reference body in a state in which the wire dispersion including a metal nanowire generates surface plasmon.
Dependencies are inferred from the claim text.