WO2014148407A1 - Conducteur transparent - Google Patents

Conducteur transparent Download PDF

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Publication number
WO2014148407A1
WO2014148407A1 PCT/JP2014/057042 JP2014057042W WO2014148407A1 WO 2014148407 A1 WO2014148407 A1 WO 2014148407A1 JP 2014057042 W JP2014057042 W JP 2014057042W WO 2014148407 A1 WO2014148407 A1 WO 2014148407A1
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WIPO (PCT)
Prior art keywords
silver
transparent conductor
transparent
underlayer
polymer
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PCT/JP2014/057042
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English (en)
Japanese (ja)
Inventor
範幾 立花
健 波木井
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コニカミノルタ株式会社
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Priority to JP2015506753A priority Critical patent/JPWO2014148407A1/ja
Publication of WO2014148407A1 publication Critical patent/WO2014148407A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/31—Coating with metals
    • C23C18/42—Coating with noble metals
    • C23C18/44—Coating with noble metals using reducing agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/043—Improving the adhesiveness of the coatings per se, e.g. forming primers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1646—Characteristics of the product obtained
    • C23C18/165—Multilayered product
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
    • C23C18/1601—Process or apparatus
    • C23C18/1633—Process of electroless plating
    • C23C18/1655—Process features
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds

Definitions

  • the present invention relates to a transparent conductor. More specifically, the present invention relates to a transparent conductor having low surface resistance and high light transmittance.
  • Transparent conductors are used in electrode materials for display devices such as liquid crystal displays, plasma displays, inorganic and organic electroluminescence (EL) displays, electrode materials for inorganic and organic EL elements, touch panels and solar cells. .
  • display devices such as liquid crystal displays, plasma displays, inorganic and organic electroluminescence (EL) displays, electrode materials for inorganic and organic EL elements, touch panels and solar cells. .
  • EL electroluminescence
  • a transparent conductor As a material constituting such a transparent conductor, gold (Au), silver (Ag), platinum (Pt), copper (Cu), rhodium (Rh), palladium (Pd), aluminum (Al), chromium (Cr ) And other metals, indium oxide (In 2 O 3 ), cadmium oxide (CdO), cadmium indium oxide (CdIn 2 O 4 ), cadmium tin oxide (Cd 2 SnO 4 ), titanium oxide (TiO 2 ), oxidation Oxide semiconductors such as tin (SnO 2 ) and zinc oxide (ZnO) are known. Among these, a transparent conductor made of an indium tin oxide (ITO) film is frequently used from the viewpoint of light transmittance and conductivity.
  • ITO indium tin oxide
  • a transparent conductor in which silver is arranged in a mesh shape has been proposed as a transparent conductor that replaces the ITO film (see, for example, Patent Document 1).
  • the transparent conductive film disclosed in Patent Document 1 has a silver mesh width of about 20 ⁇ m. Therefore, the silver mesh is easily visible and cannot be applied to uses where high transparency is required. Furthermore, although there is conduction in the mesh portion, it is not sufficiently conducted in the gap portion of the mesh, and the surface resistance cannot be lowered sufficiently.
  • a transparent conductor containing silver nanowires has been proposed (see, for example, Patent Document 2).
  • the transparent conductive film has a large surface resistance, and the thickness of the transparent conductive film needs to be about 200 nm. For this reason, it is difficult to apply the transparent conductor to applications that require flexibility.
  • Non-Patent Document 1 A transparent conductor in which a niobium oxide (Nb 2 O 5 ) film, a silver film, and an indium zinc oxide (IZO) film are stacked has also been proposed (see, for example, Non-Patent Document 1).
  • the present invention has been made in view of the above-mentioned problems and situations, and a problem to be solved is to provide a transparent conductor having low surface resistance and high light transmittance.
  • the present inventor can solve the problem by providing a silver layer and an underlayer containing a specific polymer having a sulfur atom adjacent to each other. And found the present invention.
  • an underlayer containing a polymer having a sulfur atom and a weight average molecular weight in the range of 1,000 to 1,000,000, and a transparent conductive layer containing silver or a silver alloy adjacent to the underlayer A transparent conductor, comprising:
  • a transparent conductor having both low surface resistance and high light transmittance can be provided.
  • the specific polymer having a sulfur atom and silver or a silver alloy (hereinafter also referred to as silver or the like). Due to the action, the diffusion distance of silver or the like at the adjacent interface is reduced, and aggregation at a specific location is suppressed. Therefore, in general, a thin conductive layer containing silver or a silver alloy that is easily isolated in an island shape by film growth of an island-like growth type (Volume-Weber: VW type) is a single-layer growth type (Frank-van der Merwe (FM type) film growth is considered to be uniform.
  • the transparent conductor of the present invention comprises an underlayer containing a polymer having a sulfur atom and a weight average molecular weight in the range of 1,000 to 1,000,000 on a transparent support, and silver or a silver alloy adjacent to the underlayer It has the transparent conductive layer containing this, It is characterized by the above-mentioned.
  • This feature is a technical feature common to the inventions according to claims 1 to 4.
  • the polymer has an aromatic ring from the viewpoint of manifesting the effect of the present invention.
  • the layer thickness of the transparent conductive layer is preferably in the range of 1 to 20 nm.
  • the transparent conductor preferably has a light transmittance of 80% or more at a wavelength of 550 nm.
  • ⁇ is used to mean that the numerical values described before and after it are included as a lower limit value and an upper limit value.
  • the transparent conductor of the present invention comprises a base layer containing a polymer having a sulfur atom and a weight average molecular weight in the range of 1,000 to 1,000,000 (hereinafter also referred to as S polymer) on a transparent support. And a transparent conductive layer containing silver or a silver alloy adjacent to the base layer.
  • FIG. 1 is a schematic cross-sectional view showing an example of the configuration of the transparent conductor according to the embodiment.
  • the transparent conductor 1 is a layer in which a base layer 3 and a transparent conductive layer 4 containing silver or a silver alloy formed thereon are sequentially laminated on a transparent support 2.
  • the structure is a structure, and the underlayer 3 is a layer configured to contain an S polymer.
  • the term “transparent” means that the light transmittance at a wavelength of 550 nm is 50% or more.
  • the transparent conductor of the present invention has a light transmittance of 50% or more at a wavelength of 550 nm, and preferably has a light transmittance of 80% or more at a wavelength of 550 nm.
  • the light transmittance can be measured by a known method using a spectrophotometer or the like.
  • a transparent conductive layer containing silver or a silver alloy is provided adjacent to the underlayer, and the underlayer has a sulfur atom having an affinity for silver atoms. It is the structure that S polymer is contained.
  • the silver atoms constituting the conductive layer interact with the S polymer contained in the underlayer, and silver on the surface of the underlayer The diffusion distance of atoms is reduced, and the aggregation of silver at specific points is suppressed.
  • a silver atom first forms a two-dimensional nucleus on the surface of the underlayer containing a compound having an atom having an affinity for the silver atom, and forms a two-dimensional single crystal layer around it.
  • the film is formed by the layer growth type (Frank-van der Merwe: FM type) film growth.
  • an island-shaped growth type (Volume-Weber) in which silver atoms adhering to the surface of the underlayer are bonded while diffusing the surface to form a three-dimensional nucleus and grow into a three-dimensional island shape. : VW type), it is considered that the film is easily formed into an island shape.
  • the S polymer contained in the underlayer prevents the island-like growth in this manner, and a single layer. It is assumed that growth will be promoted.
  • a transparent conductive layer having a uniform layer thickness can be obtained even though the layer thickness is thin.
  • the transparent conductive layer containing silver or a silver alloy according to the present invention includes aluminum (Al), gold (Au), In (indium), copper (Cu), palladium (Pd), platinum, which are solid solution elements with respect to silver. (Pt) can be contained. Thereby, it becomes what was comprised with the solid solution of silver and these additional elements, silver migration is suppressed, and a layer becomes uniform.
  • the silver content in the transparent conductive layer containing silver or a silver alloy is 50% by mass or more, and preferably in the range of 80 to 100% by mass. More preferably, the transparent conductive layer containing silver or a silver alloy is preferably a layer made of silver.
  • the layer thickness of the transparent conductive layer containing silver or a silver alloy is preferably in the range of 1 to 20 nm, more preferably in the range of 3 to 15 nm. When the layer thickness is within this range, it is preferable to achieve both high light transmittance and low surface resistance.
  • the underlayer according to the present invention contains, as a main component, a polymer (S polymer) having a sulfur atom and having a weight average molecular weight in the range of 1,000 to 1,000,000.
  • the main component refers to 50% by mass or more based on the total composition of the underlayer. Preferably, it is in the range of 70 to 100% by mass.
  • the S polymer according to the present invention may be one kind or a plurality may be mixed. It is also permitted to mix a compound having no sulfur atom within a range that does not impair the effects of the present invention.
  • the thickness of the underlayer according to the present invention can be provided in an arbitrary range from 5 nm to 1 ⁇ m, but is preferably in the range of 10 to 500 nm as a range for ensuring the uniformity of the transparent conductive layer.
  • the polymer (S polymer) having a sulfur atom and a weight average molecular weight in the range of 1,000 to 1,000,000 according to the present invention has a sulfide bond, a disulfide bond, a mercapto group, a sulfone group, a thiocarbonyl bond, etc. What is necessary is just to have, and it is especially preferable that they are a sulfide bond and a mercapto group.
  • the S polymer preferably has an aromatic ring.
  • polymerization form of the S polymer examples include a polycondensation polymer such as polyester, an acrylic derivative monomer, a vinyl polymerization polymer composed of a styrene derivative monomer, and the like.
  • specific S polymers include, for example, polymers composed of the following monomer units.
  • the subscript of each monomer unit indicates the constituent ratio (molar ratio) of the copolymer.
  • the total molecular weight is within the range of 1,000 to 1,000,000 as shown in Table 1 as the weight average molecular weight.
  • the S polymer according to the present invention can be produced by a known and well-known method.
  • the weight average molecular weight can be adjusted by a well-known method such as adjusting the amount of the polymerization initiator, adjusting the reaction temperature, or introducing a polymerization terminator.
  • the weight average molecular weight Mw of the S polymer according to the present invention is a value measured under the following measurement conditions at room temperature.
  • Examples of the transparent support according to the present invention include glass, quartz, and a transparent resin film.
  • Examples of the glass include silica glass, soda-lime silica glass, lead glass, borosilicate glass, and alkali-free glass.
  • On the surface of these glass materials from the viewpoint of adhesion with the underlayer, durability, and smoothness, if necessary, physical treatment such as polishing is performed, coatings made of inorganic or organic substances, and these A hybrid coating combining the coatings may be formed.
  • polyesters such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyethylene, polypropylene, cellophane, cellulose diacetate, cellulose triacetate (TAC), cellulose acetate butyrate, cellulose acetate propionate ( CAP), cellulose esters such as cellulose acetate phthalate, cellulose nitrate or derivatives thereof, polyvinylidene chloride, polyvinyl alcohol, polyethylene vinyl alcohol, syndiotactic polystyrene, polycarbonate, norbornene resin, polymethylpentene, polyether ketone, polyimide , Polyethersulfone (PES), polyphenylene sulfide, polysulfones Cycloolefin resins such as polyetherimide, polyetherketoneimide, polyamide, fluororesin, nylon, polymethylmethacrylate, acrylic or polyarylate, Arton (trade name, manufactured by JSR) or Appel (trade name, manufactured by J
  • the underlayer according to the present invention can be provided by a coating method, and the transparent conductive layer containing silver or a silver alloy can be provided by using a usual method such as a vapor deposition method, a sputtering method, or a coating method.
  • Examples of the method for forming the underlayer include methods that can be generally used, such as a coating method (including a casting method and a spin coating method).
  • the coating method is also excellent in production speed.
  • the S polymer according to the present invention and other additives for example, an electron transport material, a hole transport material, etc.
  • the present invention are dissolved in an appropriate solvent.
  • this solution is applied on a transparent support, dried and then heat-treated.
  • the solvent is not particularly limited as long as it can dissolve and disperse the S polymer, but includes alcohols such as isopropanol and n-butanol; those containing hydrogen atoms of alcohols such as hexafluoroisopropanol and tetrafluoropropanol substituted with halogen atoms.
  • Alcohols such as isopropanol and n-butanol; those containing hydrogen atoms of alcohols such as hexafluoroisopropanol and tetrafluoropropanol substituted with halogen atoms.
  • Halogen alcohol dimethyl sulfoxide, dimethylformamide and the like can be mentioned. These may be used individually by 1 type, and may mix and use 2 or more types.
  • concentration of the S polymer in the solvent and, if necessary, the concentration of other additives is not particularly limited, but for example, the concentration in the solution is 0.005 to 0.5% by mass. Is preferred.
  • the coating method is not limited, and examples thereof include spin coating, casting from a solution, dip coating, blade coating, wire bar coating, gravure coating, and spray coating. Furthermore, patterning can also be performed by a printing method such as an ink jet method, a screen printing method, a relief printing method, an intaglio printing method, an offset printing method, or a flexographic printing method.
  • the heat treatment conditions after coating are not particularly limited.
  • the heat treatment temperature is preferably room temperature (25 ° C.) to 180 ° C., more preferably 60 to 120 ° C.
  • the heat treatment time is preferably 10 seconds to 10 minutes, more preferably 30 seconds to 5 minutes.
  • polymer particles for example, latex particles
  • a particle diameter of 0.01 to 0.8 ⁇ m can be used.
  • Transparent conductive layer Examples of the method for forming a transparent conductive layer containing silver or a silver alloy according to the present invention include methods that can be usually used such as a vapor deposition method, a CVD method, and a coating method (including a casting method and a spin coating method).
  • a method in which a transparent conductive layer is provided on the underlayer by a silver mirror reaction is preferably exemplified.
  • a processing method for treating the underlayer with the active treatment liquid for silver mirror a method of applying the active treatment liquid for silver mirror to the surface on which the transparent conductive layer of the transparent support provided with the underlayer is formed, or And a method of applying an active treatment solution for silver mirror containing stannous chloride or the like to the surface of the underlayer.
  • spray coating that does not select the shape of the support is particularly suitable as the coating method. Furthermore, you may wash
  • Examples of the active treatment liquid for silver mirror containing stannous chloride include activation treatment liquids described in JP-A-2007-197743, JP-A-2006-274400, and the like. You may provide the process of performing the activation process by silver ion after the process processed with the active process liquid for silver mirrors.
  • activation treatment with silver ions for example, treatment with a treatment solution containing silver nitrate is simple and preferable.
  • the silver nitrate concentration of the silver nitrate aqueous solution used in this step is preferably 0.01 mol / L or less, and then brought into contact with the underlayer treated with stannous chloride.
  • spray coating in which a new solution is always supplied is suitable.
  • the silver thin film layer is formed by silver mirror reaction by mixing two liquids, an ammoniacal silver nitrate solution containing silver nitrate and ammonia, and a reducing agent solution containing a reducing agent and a strong alkali component, on the surface of the underlayer subjected to the activation treatment. Apply as is. As a result, an oxidation-reduction reaction occurs, so that metallic silver is deposited and a silver coating is formed to form a silver thin film layer.
  • an aldehyde compound such as glucose or glyoxal
  • an organic compound such as a hydrazine compound such as hydrazine sulfate, hydrazine carbonate or hydrazine hydrate
  • an aqueous solution such as sodium sulfite or sodium thiosulfate is preferably used.
  • ammoniacal silver nitrate aqueous solution several additives can be added to produce good silver.
  • amino alcohol compounds such as amine, triethanolamine and triisopropanolamine
  • amino acids such as glycine, alanine and sodium glycine, and salts thereof, but are not particularly limited.
  • aqueous solutions are mixed in advance, and this mixed solution is applied to the surface of the underlayer using a spray gun or the like.
  • Spraying method spraying method using a concentric spray gun with a structure in which two types of aqueous solutions are mixed and immediately discharged in the spray gun head, and discharging two types of aqueous solutions from a double-headed spray gun with two spray nozzles, respectively.
  • spraying two kinds of aqueous solutions simultaneously using two separate spray guns. These can be arbitrarily selected according to the situation.
  • a protective layer can be provided for the purpose of stabilizing the metallic silver deposited on the silver thin film layer.
  • the protective layer can be subjected to a treatment such as immersion in a solution containing an organic compound having a reaction or affinity with silver, or application of the solution, but is preferably within a range not impairing the effects of the present invention.
  • organic compound a well-known organic compound having an affinity for silver, such as a nitrogen-containing heterocyclic compound having a mercapto group or a thione group, is effectively used.
  • the transparent conductor of the present invention includes various types of optoelectronic devices such as liquid crystal, plasma, organic electroluminescence, field emission display, touch panel, mobile phone, electronic paper, various solar cells, various electroluminescence dimming elements, etc.
  • the substrate can be preferably used.
  • the surface of the transparent conductor (for example, the surface on the side opposite to the transparent support material via the base layer) may be bonded to another member via the adhesive layer or the like.
  • the equivalent admittance coordinates of the surface of the transparent conductor are close to the equivalent admittance coordinates of the adhesive layer.
  • the equivalent admittance coordinates of the surface of the transparent conductor and the admittance coordinates of air are preferably close. Thereby, reflection of the light on the transparent conductor surface is suppressed.
  • a layer for example, a TiO 2 -containing layer or a ZrO-containing layer
  • a layer having a higher refractive index than that of the transparent support can be provided between the layer made of silver or the like and the transparent support.
  • Transparent conductor no. 1 was prepared, the underlayer S polymer (Exemplary Compound S-1) was changed as shown in Table 2, and the others were transparent conductor Nos. 1 in the same manner as in the production of 2 to 6 were produced. Table 1 lists the weight average molecular weight of each S polymer used.
  • Transparent Conductor No. 7 Preparation As a transparent conductor for comparison, transparent conductor No. In production of No. 1, ⁇ -NPD described in Patent Document 3 was provided in a thickness of 40 nm as an underlayer instead of S polymer. At this time, the degree of vacuum in the vapor deposition chamber was on the order of 10 ⁇ 5 Pa, and the film formation rate was 3 ⁇ / s. Others are transparent conductor no. 1 in the same manner as in the production of 7 was produced.
  • transparent conductor No. In the production of 1, in a sample in which a conductive layer made of silver was formed without providing an underlayer, a uniform film could not be formed by electron microscope observation with an amount of silver having a thickness of 10 nm, but a uniform film at 30 nm. It was. However, the reflection was strong and there was almost no transparency.
  • Table 2 shows the above evaluation results.
  • sample no. 1 to 6 are comparative sample Nos. It can be seen that the surface resistance is lower than that in FIG.
  • the silver mirror plating solution was prepared as follows. Separately from a silver nitrate solution in which 20 g of silver nitrate was dissolved in 10000 g of deionized water, 100 g of 28% ammonia aqueous solution and 5 g of monoethanolamine were dissolved in 10000 g of deionized water to prepare an ammonia solution. Prior to use, the silver nitrate solution and the ammonia solution were mixed one-to-one to obtain an ammoniacal silver nitrate solution. Next, 10 g of hydrazine sulfate, 5 g of monoethanolamine and 10 g of sodium hydroxide were dissolved in 10000 g of deionized water to prepare a reducing agent solution.
  • the ammoniacal silver nitrate solution and the reducing agent solution thus obtained are simultaneously sprayed using a double-head spray gun so that the layer thickness after drying becomes 10 nm, to form a transparent conductive layer made of silver, and then removed. After washing with ionic water, it was dried in a dryer at 70 ° C. for 30 minutes to obtain a transparent conductor no. 11 was produced.
  • Transparent Conductor No. Production of 12 to 16 >> Transparent conductor no.
  • the S polymer (Exemplary Compound S-2) was changed as described in Table 3, and the others were transparent conductor No. In the same manner as the production of the transparent conductor No. 11 12 to 16 were produced.
  • Table 1 lists the weight average molecular weight of each S polymer used.
  • Transparent Conductor No. Preparation of No. 17 As a transparent conductor for comparison, transparent conductor No. 11 was prepared, instead of the S polymer (Exemplary Compound S-2), ⁇ -NPD described in Patent Document 3 was provided as a base layer with a thickness of 40 nm. At this time, the degree of vacuum in the vapor deposition chamber was on the order of 10 ⁇ 5 Pa, and the film formation rate was 3 ⁇ / s. Others are transparent conductor no. In the same manner as the production of the transparent conductor No. 11 17 was produced.
  • sample no. 11 to 16 are comparative sample Nos. It can be seen that the surface resistance is low and the light transmittance is high compared to 17.
  • the transparent conductor of the present invention includes various types of optoelectronic devices such as liquid crystal, plasma, organic electroluminescence, field emission display, touch panel, mobile phone, electronic paper, various solar cells, various electroluminescence dimming elements, etc.
  • the substrate can be preferably used.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
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Abstract

La présente invention a pour objectif de fournir un conducteur transparent qui présente une faible résistance superficielle et une transmission de lumière élevée. Le conducteur transparent est caractérisé en ce qu'il comprend, sur un corps support transparent, une sous-couche contenant un polymère comprenant des atomes de soufre et ayant un poids moléculaire moyen en poids allant de 1 000 à 1 000 000, et une couche de conducteur transparent qui contient de l'argent ou un alliage d'argent et qui est adjacente à la sous-couche.
PCT/JP2014/057042 2013-03-21 2014-03-17 Conducteur transparent WO2014148407A1 (fr)

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JP2015506753A JPWO2014148407A1 (ja) 2013-03-21 2014-03-17 透明導電体

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018074217A1 (fr) * 2016-10-17 2018-04-26 アルプス電気株式会社 Élément moulé composite et procédé de fabrication d'élément moulé composite, et composants électroniques et électriques et procédé de fabrication de composants électroniques et électriques

Citations (5)

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