Transparent conductive layer and preparation method thereof

摘要

The present invention relates to a method for producing a transparent conductive film in a form of complex multi-layer film comprising at least one layer using a silver complex compound having special structure and an organic acid metal salt. The method for producing the transparent conductive film, using one or more solution processes, comprises steps of (1) forming a transparent layer over a transparent substrate to improve transmittance; and (2) forming the conductive layer allowing conductivity, and further comprises a step of (3) forming a protective layer to prevent a change over time of the conductive layer. According to the present invention, it is possible to achieve large-scaled transparent conductive film having excellent conductivity and transmittance, as well as simple processes.

主权项

1. A method for producing a transparent conductive film in the form of a complex multi-layer film, comprising steps of:
forming a transparent layer by applying a transparent layer solution consisting of one or more organic acid metal salt, solvent and optionally at least one additive selected from a group consisting of stabilizer, dispersing agent, binder resin, reducing agent, surfactant, wetting agent, thixotropic agent and leveling agent to a transparent substrate, wherein the organic acid metal salt comprises an organic acid selected from the group consisting of butyric acid, valeric acid, acrylic acid, pivalic acid, n-hexanoic acid, 2-ethyl-hexanoic acid, neodecanoic acid, lauric acid, stearic acid, oleic acid, naphthenic acid, dodecanoic acid and linoleic acid; and wherein the organic acid metal salt comprises a metal selected from the group consisting of Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, V, Mn, Fe, Co, Ni, Cu, Y, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Cd, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, Al, Ga, Tl, Ge, Pb, Bi, La, Ce, Pr, Nd, Sm and Eu; and forming a conductive layer by applying to the transparent layer a conductive layer solution including a silver complex compound obtained by reacting the silver compound expressed by a chemical formula 1 below, and one or more compounds selected from ammonium carbamate-based compound expressed by a chemical formula 2 below, ammonium carbonate-based compound expressed by a chemical formula 3, ammonium carbonate-based compound expressed by a chemical formula 4 or a mixture thereof, wherein the transparent layer is in direct contact with both the substrate layer and the conductive layer [where X is a substituent selected from the group consisting of oxygen, sulfur, halogen, cyano, cyanate, carbonate, nitrate, nitrite, sulfate, phosphate, thiocyanate, chlorate, perchlorate, tetrafluoroborate, acetylacetonate, carboxylate and their derivatives, n is an integer of 1˜4, and R1 to R6 is a substituting group independently selected from Hydrogen, C1˜C30 aliphatic or cyclic alkyl group, aryl group or aralkyl group, alkyl and aryl groups of which a functional group is substituted, heterocyclic compound, or high molecular compound or its derivatives, in which R1 and R2, or R4 and R5 can be connected via alkylene including or not including hetero atoms with each other to form cycles].