WO2008049268A1 - Dispositif électrochromique - Google Patents

Dispositif électrochromique Download PDF

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Publication number
WO2008049268A1
WO2008049268A1 PCT/CN2006/002844 CN2006002844W WO2008049268A1 WO 2008049268 A1 WO2008049268 A1 WO 2008049268A1 CN 2006002844 W CN2006002844 W CN 2006002844W WO 2008049268 A1 WO2008049268 A1 WO 2008049268A1
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WIPO (PCT)
Prior art keywords
oxide
electrochromic device
group
layer
substrate
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Application number
PCT/CN2006/002844
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English (en)
Chinese (zh)
Inventor
Young-Sen Lin
Chih-Chieh Chan
Original Assignee
Feng Chia University
Mobiletron Electronics Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Feng Chia University, Mobiletron Electronics Co., Ltd filed Critical Feng Chia University
Priority to PCT/CN2006/002844 priority Critical patent/WO2008049268A1/fr
Publication of WO2008049268A1 publication Critical patent/WO2008049268A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect
    • G02F1/1514—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
    • G02F1/1523—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material
    • G02F1/1524—Transition metal compounds

Definitions

  • the present invention relates to an electrochromic device, and more particularly to an improved electrochromic device comprising a flexible substrate and a rigid substrate. Background technique
  • Electrochromic materials can be used in various fields, such as: vehicle mosaic glass (such as window, skylight), building mosaic glass, display device, optical components, mirror body and electromagnetic wave shielding, etc. It can effectively block the interference of the outside world (such as light and heat). Electrochromic materials are generally classified into organic materials and inorganic materials, and inorganic materials are preferred for stability, such as tungsten oxide, titanium oxide, and the like.
  • U.S. Patent No. 6,193,379 discloses an electrochromic device primarily for use in a rearview mirror in a vehicle.
  • the electrochromic device comprises a front component 100 having a front surface 100a and a rear surface 100b, a rear component spaced apart from the front component 100 and having a front surface 101a and a rear surface 101b. 101, a front component is provided
  • a transparent conductive layer 102 on the back surface 100b of 100 a transparent conductive layer 102 on the back surface 100b of 100, a conductive layer 103 disposed on the front surface 101b of the rear member 101, and a sealing member 104 disposed between the transparent conductive layer 102 and the conductive layer 103, wherein The sealing member 104, the transparent conductive layer 102 and the conductive layer 103 cooperate to form a compartment 105, and the compartment 105 is provided with a liquid color change in a solution state.
  • the electrochromic material may be composed of an inorganic metal oxide or an organic material.
  • the electrochromic material of the electrochromic device of this patent is blended with an electrolyte for conducting ions, so that a higher voltage must be continuously applied to maintain the discoloration state, thereby failing to have a colormemory effect. The effect.
  • the electrochromic material is filled into the compartment 105 in the form of a solution, the surface of the substrate of this patent must be selected from a molecular material which is exposed to an organic solvent and which retains its properties completely and which contains an aliphatic hydrocarbon.
  • U.S. Patent No. 6,157,479 discloses an electrochromic device comprising a substrate 200, a conductive coating 201, an electrochromic layer 202, and an electrolyte layer 203 in order from top to bottom.
  • An ion storage layer 204, a conductive coating 205, and a substrate 206 see FIG. 2.
  • the two substrates 200, 206 can Made of glass or any plastic, the two conductive coatings 201, 205 may be made of a metal oxide such as indium tin oxide or a metal such as silver.
  • the electrochromic layer 202 is made of polydioxythiophene, the electrolyte layer 203 comprises a polymer, a lithium salt, a solvent and a light stabilizer, and the ion storage layer 204 is made of a special Made of a combination of metal oxides (such as Ti0 2 -Ce0 2 ). It is known that an organic polymer such as polydioxythiophene is highly susceptible to ultraviolet light and is liable to cause the electrochromic effect of the component to decay or even disappear. Therefore, in this patent, it is necessary to additionally add the light to the electrolyte layer 203. Stabilizer to avoid the organic polymer being affected by ultraviolet light.
  • the existing electrochromic device using glass as the upper and lower substrates is prone to cracking when subjected to an external force, and causes damage to the user and shortens the service life, and the existing use of ethylene terephthalate is used.
  • the ester as an electrochromic device for the upper and lower substrates can solve the problem of cracking, but for the light-reflective electrochromic device, the polyethylene terephthalate substrate is easy to form unevenness and wrinkles. In the case of folding, when the light is reflected, image distortion, wrinkles, or overlapping may occur.
  • the object of the present invention is to provide an improved electrochromic device which has better stability, coloring memory, fast coloration, adjustable color depth, long service life and reduced image wrinkles or superimposed images. .
  • the improved electrochromic device of the present invention comprises: a first unit, a second unit, and an ion conducting layer, the first unit having a first substrate and an electrolysis disposed on the first substrate a color change layer and a first conductive layer sandwiched between the first substrate and the electrochromic layer, the electrochromic layer being selected from the group consisting of metal oxides in the group consisting of Made of: tungsten oxide, molybdenum oxide, titanium oxide, cerium oxide, cerium oxide and combinations thereof.
  • the second unit has a second substrate, an auxiliary electrochromic layer disposed on the second substrate, and a second conductive layer sandwiched between the second substrate and the auxiliary electrochromic layer.
  • the auxiliary electrochromic layer is made of a metal oxide selected from the group consisting of vanadium oxide, nickel oxide, chromium oxide, manganese oxide, iron oxide, copper oxide, cerium oxide, and combinations thereof. .
  • the ion conducting layer is sandwiched between an electrochromic layer of the first unit and an auxiliary electrochromic layer of the second unit.
  • the first substrate and the second substrate are different and are respectively made of hard or soft materials.
  • the electrochromic device forms an electrochromic layer by using an inorganic metal oxide which is not affected by ultraviolet rays, and is provided with an auxiliary electrochromic layer for assisting in controlling the decoloring and coloring state, and utilizing ion conduction.
  • the layer conducts ions to the electrochromic layer and the auxiliary electrochromic layer (such as the following two reversible reaction mechanisms) to effectively extend the coloring memory time:
  • the degree of coloring by changing the magnitude of the voltage (or reverse voltage) and the voltage-on time between the first and second conductive layers, so that the electrochromic color of the present invention is changed.
  • the device has the advantages of better stability (especially anti-ultraviolet light properties), coloring memory, fast de-coloring, and adjustable coloration.
  • the present invention adopts a hard material and a soft material as the first substrate and the second substrate. When the soft substrate is subjected to impact, the improved electrochromic device of the present invention appears to be compared with the existing one.
  • An electrochromic device using a glass substrate as a substrate is more resistant to impact and less susceptible to cracking.
  • the hard substrate of the improved electrochromic device of the present invention can be used as a support for another soft material substrate, so as to prevent image distortion compared to the electrochromic device prepared by using the soft material substrate.
  • the soft material substrate used in the improved electrochromic device of the present invention is a relatively thin (175 ⁇ m) substrate compared to the conventional electrochromic device having a glass substrate as a substrate.
  • the improved electrochromic device of the present invention has the effect of preventing the occurrence of a ghosting situation.
  • the electrochromic device of the present invention has the advantages of being lighter and thinner than the device using glass for both the upper and lower substrates, and can be applied to, for example, automotive components (such as glass, skylights, rearview mirrors). , electronic paper, electronics and smart windows and other applications.
  • the improved electrochromic device of the present invention comprises a first unit, a second unit and an ion conducting layer.
  • the first unit has a first substrate, an electrochromic layer disposed on the first substrate, and a first conductive layer sandwiched between the first substrate and the electrochromic layer.
  • the second unit has a second substrate, an auxiliary electrochromic layer disposed on the second substrate, and a second conductive layer sandwiched between the second substrate and the auxiliary electrochromic layer .
  • the ion conducting layer is sandwiched between an electrochromic layer of the first unit and an auxiliary electrochromic layer of the second unit.
  • the electrochromic layer is made of a metal oxide selected from the group consisting of tungsten oxide, molybdenum oxide, titanium oxide, and cerium oxide.
  • the auxiliary electrochromic layer is selected from the group consisting of metal oxides in the group consisting of: vanadium oxide, nickel oxide, chromium oxide, manganese oxide, iron oxide, oxidation Copper, cerium oxide, and combinations thereof.
  • the electrochromic layer is made of tungsten oxide
  • the auxiliary electrochromic layer is made of vanadium oxide.
  • the first substrate and the second substrate are different and are respectively made of a hard material or a soft material, that is, when the first substrate is made of a hard material, the second substrate is made of a soft material.
  • the first substrate is made of a soft material
  • the second substrate is made of a hard material.
  • the hard material used to make the substrate may be transparent (such as glass or germanium molecules), translucent or opaque (such as glass, polymer, ceramic, metal or a combination thereof), for example, when the subsequent application is used as a light transmissive electrochromic device, a transparent hard material is used to fabricate the substrate.
  • hard material means “material that is relatively hard and has a supporting effect”, and its purpose is mainly to support the entire device and reduce the occurrence of image distortion or wrinkles, which may be glass or polymer materials, wherein When a polymer material is used as the hard material, it can be appropriately controlled by a change in the process or by other existing methods and depending on the properties of the polymer material.
  • the density and thickness of the polymer material (for example, the support effect can be enhanced by increasing the thickness) to conform to the supporting effect.
  • the hard material is selected from the group consisting of glass, metal, ceramic, polymer, and combinations thereof. More preferably, the hard material is selected from the group consisting of: Glass, metal, ceramic, polyethylene terephthalate, polycarbonate, acrylic, and combinations thereof. In one embodiment of the invention, the hard material is glass.
  • soft material refers to "a material that is flexible and not brittle", and its purpose is to increase the impact resistance of the entire device, and the soft material is mainly a polymer material, which is also required to be produced at the time of production.
  • the properties of the molecular material are appropriately controlled to make the density and thickness of the polymer material to be bendable.
  • the soft material is selected from the group consisting of polyethylene terephthalate, polycarbonate, acrylic acid, and combinations thereof. In a specific embodiment of the invention, the soft material is polyethylene terephthalate.
  • the first conductive layer and the second conductive layer may be made of any metal, metal alloy or metal oxide having electrical conductivity.
  • the first conductive layer and the second conductive layer respectively comprise a metal oxide selected from the group consisting of: tin oxide iridium tin oxide, Antimony tin oxide
  • the first conductive layer contains a metal selected from the group consisting of silver, aluminum, and combinations thereof
  • the second conductive layer contains a group selected from the group consisting of Metal oxides in the group: tin oxide, indium tin oxide, antimony tin oxide, fluorine-doped tin oxide, antimony tin fluoride, zinc oxide, and combinations thereof.
  • the first conductive layer contains a metal oxide selected from the group consisting of tin oxide, indium tin oxide, antimony tin oxide, fluorine-doped tin oxide, antimony tin fluoride.
  • the second conductive layer comprises a metal selected from the group consisting of silver, aluminum, and combinations thereof.
  • the first conductive layer and the second conductive layer are both made of indium tin oxide.
  • the first conductive layer and the second conductive layer are each composed of oxygen than indium tin and silver.
  • the ion conducting layer is gelatinous (gd) and contains a lithium-containing salt, a dispersing agent and a thickening agent.
  • a lithium-containing salt such as LiNb0 3 or Ta 2 0 5
  • a dispersing agent such as LiNb0 3 or Ta 2 0 5
  • a thickening agent such as LiNb0 3 or Ta 2 0 5
  • existing solid electrolytes such as LiNb0 3 or Ta 2 0 5
  • Increasing the ion conduction velocity and shortening the de-coloring time can be accomplished by applying a lower voltage.
  • the electrochromic device is subjected to external pressure, since the first substrate or the second substrate is thin and not brittle, the ion conductive layer is gel-like, which is more effective. The stress is released without the occurrence of leakage of the liquid electrolyte.
  • the lithium-containing salt is selected from the group consisting of lithium perchlorate [LiC10 4 ], lithium trifluoromethanesulfonamide [LiN(S0 2 CF 3 ) 2 ], Lithium trifluoromethanesulfonate [Li0 3 SCF 3 ], lithium nonafluorobutanesulfonate [Li0 3 SC 4 F 9 ], lithium chloride [LiCl], lithium hexafluorocarpate [LiPF 6 ], and combinations thereof.
  • the dispersing agent for the ion conducting layer is selected from the group consisting of: propylene carbonate, ethylene carbonate, gamma-butyric acid, Y-butyrolactone), acetonitrile, dimethylformamide
  • the thickener for the ion conducting layer is selected from the group consisting of polyethylene glycol (PEG), polypropylene glycol, polyethylene oxide (polyethylene oxide) ⁇ polyether, polyvinyl alcohol ⁇ polymethyl methacrylate, polyacrylonitrile, polydimethyl methacrylate [poly(N, N -dimethylacrylamide)], poly[2-(2-methoxyethoxy)-ethoxy]phosphazene [po 1 y[2-(2-methoxyethoxy)-ethoxy]phosphazene ], poly(oxidized methylene [OH 1 y (oxymethylene-oligo (oxyethylene))] and combinations thereof.
  • PEG polyethylene glycol
  • polypropylene glycol polyethylene oxide (polyethylene oxide) ⁇ polyether
  • polyvinyl alcohol ⁇ polymethyl methacrylate polyacrylonitrile
  • polydimethyl methacrylate poly(N, N -dimethylacrylamide)
  • the electrochromic device further comprises a reflective metal layer disposed on the first substrate or the second substrate.
  • the reflective metal layer may comprise any metal having light reflecting properties.
  • the reflective metal layer comprises a group selected from the group consisting of silver, aluminum, and combinations thereof.
  • the electrochromic device further comprises a protective layer disposed on the reflective metal layer for the purpose of preventing the reflective metal layer from being scratched.
  • the protective layer contains a group selected from the group consisting of silicon oxide (sio 2 ), titanium oxide (Tio 2 ), Alumina (A1 2 0 3 ), silicon nitride (Si 3 N 4 ), epoxy resin, acrylic resin, urethane resin, silicone resin ), a para-parylene resin, a polyimide, and combinations thereof.
  • the electrochromic device further comprises a transparent protective layer disposed on the first substrate of the first unit or the second substrate of the second unit for the purpose of protecting the substrate.
  • the transparent protective layer comprises a group selected from the group consisting of silicon oxide, titanium oxide, aluminum oxide, tantalum nitride, epoxy resin, acrylic resin, urethane resin, and silicone resin. Resin, poly-p-xylene toluene resin, polyimine, and combinations thereof.
  • the ion conducting layer is sandwiched between two mutually joined electrochromic layers and the auxiliary electrochromic layer.
  • the electrochromic layer and the auxiliary electrochromic layer are bonded to each other by being coated by an adhesive layer to facilitate adhesion while improving the reliability of the entire device. Degree and weather resistance.
  • the adhesive layer may be any adhesive material, and may be coated on the electrochromic layer or the auxiliary electrochromic layer by patterned printing or the like.
  • the adhesive layer is It is made of a group selected from the group consisting of epoxy resin, acrylic resin, urethane resin, silica gel resin, polyparaxylene resin, polyimine, and combinations thereof.
  • first conductive layer and the second conductive layer, the electrochromic layer and the auxiliary electrochromic layer of the preferred embodiment of the improved electrochromic device of the present invention can be according to any existing method. Preparation was carried out. For example, physical vapor deposition, sol-gel, chemical solution deposition, chemical vapor deposition
  • the two conductive layers of the device are electrically connected to a power source, and an effect of causing an electrochromic change is achieved by applying a voltage, and the power source is a DC power source.
  • the electrochromic device of the present invention can also change the shape of the substrate depending on the subsequent use, for example, a curved substrate can be used as a wide-angle rear view mirror or a curved sunroof.
  • a light reflection-modified electrochromic device it can be used for a rear view mirror or other mirror body.
  • Figure 1 is a schematic view showing the structure of a conventional electrochromic device
  • FIG. 2 is a schematic view showing the structure of another conventional electrochromic component
  • FIG. 3 is a schematic view showing the structure of a light-transparent modified electrochromic device according to Embodiment 1 of the present invention
  • FIG. 4 is an ultraviolet-visible light spectrum showing the light penetration improvement of Embodiment 1 of the present invention. The result of the penetration test by the electrochromic device;
  • Figure 5 is a schematic view showing the structure of a light-reflecting improved electrochromic device according to Embodiment 5 of the present invention
  • Figure 6 is an ultraviolet-visible light spectrum chart illustrating the light-reflecting improved electric system of Embodiment 5 of the present invention. The result of the reflectance test performed by the color changing device;
  • Figure 7 is a schematic view showing the structure of a light-reflecting improved electrochromic device of Embodiment 6 of the present invention
  • Figure 8 is a schematic view showing the light-reflecting improved electrochromic device of Embodiment 7 of the present invention
  • Figure 9 is a schematic view showing the structure of a light-reflecting improved electrochromic device according to Embodiment 8 of the present invention
  • Figure 10 is a schematic view showing the light-reflecting improved electrochromic change of Embodiment 9 of the present invention.
  • Figure 11 is a view showing the structure of a light-reflecting improved electrochromic device of Embodiment 10 of the present invention ⁇
  • Embodiment 1 of the light transmissive improved electrochromic device of the present invention comprises a first unit 1, a second unit 2, an ion conducting layer 3 and an adhesive layer 4.
  • the first unit 1 has a first substrate 11 made of glass, an electrochromic layer 13 formed on the first substrate 11 and made of tungsten oxide, and a sandwiched on the first substrate. 11 and the first conductive layer 12 between the electrochromic layer 13.
  • the second unit 2 has a second substrate 21 made of polyethylene terephthalate, an auxiliary electrochromic layer 23 formed on the second substrate 21 and made of indium tin oxide. And a second conductive layer 22 sandwiched between the second substrate 2 and the auxiliary, auxiliary color-changing layer 23.
  • the ion-conducting layer 3 is sandwiched between two mutually coupled electrochromic layers 13 and the auxiliary electrochromic layer 23, and is mixed with polycarbonate, LiC10 4 and polyethylene glycol having a concentration of 1M. And the electrolyte. (hereinafter referred to as "PC-LiC10 4 -PEG").
  • the adhesive layer 4 is for bonding the electrochromic layer 13 and the auxiliary electrochromic layer 23 around the four layers, and is formed of an epoxy resin.
  • the light transmissive electrochromic device of the first embodiment is prepared by coating a first substrate having a thickness of 1.1 mm and the second substrate 21 having a thickness of 175 ⁇ m, respectively, with an indium oxide layer. Tin, each of which forms a first conductive layer 12 having a resistance value of 15 ⁇ / port and a second conductive layer 22 having a resistance value of 30 ⁇ / ⁇ . Next, a tungsten target and a vanadium target are respectively coated with a tungsten oxide coating layer on the first conductive layer 12 and a second conductive layer by using a plasma sputtering coating technique at room temperature and a pressure of 40 mtorr.
  • the electrochromic layer 22 is coated with a layer of vanadium oxide to form the electrochromic layer 13 (the finished semi-finished product is the first unit 1, denoted as “Glass / ITO / W0 3 " to ⁇ the auxiliary electrochromic change Layer 23 (the finished semi-finished product is the second unit 2, denoted as "PET I ITO IV 2 0 5 ";).
  • An epoxy resin is separately applied to the electrochromic color by a dispenser.
  • the variable layer 13 and the periphery of the auxiliary electrochromic layer 23 are coated on the electrochromic layer 13 and the auxiliary electrochromic layer 23 by a screen printing method.
  • Electrochromic device (supplied from top to bottom in order of Glass / ITO I W0 3 1 PC-LiC10 4 - PEG IV 2 0 5 1 IT0/PET) .
  • the first conductive layer 12 and the second conductive layer 22 of the light penetrating modified electrochromic device of Embodiment 1 are connected to a 2.5V DC voltage, and then repeatedly and continuously pass through +2.5V or a 2.5.
  • V voltage when a voltage of 2.5V is applied, the electrochromic device will change to a colored state, and when a voltage of +2.5V is applied, the electrochromic device will change to a decolored state
  • UV-VIS Ultraviolet-visible spectrometer
  • the transmittance changes from 80% to about 20% in 10 seconds (the transmittance change value ⁇ - the transmittance at the time of complete color removal - the transmittance at the time of complete coloring is 60%), And the change in the transmittance rate can be stably maintained with the change of time, and it can be confirmed that the light-transmitting modified electrochromic device of the embodiment 1 does have excellent light regulation.
  • the light penetration improving electrochromic device of the second embodiment is provided except that the first substrate 11 is made of polyethylene terephthalate and the second substrate is made of glass.
  • the structure is exactly the same as that of the light-transparent modified electrochromic device of the first embodiment, and the light-transparent modified electrochromic device is fabricated by the same process (sequentially stacked from top to bottom) PET I ITO I W0 3 1 PC-LiC10 4 — PEG IV 2 0 5 1 ITO I Glass)
  • the structure of the light reflection improving electrochromic device of the third embodiment is different from the light penetrating modified electrochromic color of the embodiment 1 except that the material of the first conductive layer 12 is changed from indium tin oxide to silver.
  • the structure of the variable device is completely the same, and the light reflection improved electrochromic device is prepared by the same process (sequentially stacked from top to bottom as Glass / Ag / W0 3 1 PC-LiC10 4 -PEG IV 2 0 5 1 ITO I PET).
  • the structure of the light reflection improving electrochromic device of the fourth embodiment is different from the light penetrating modified electrochromic change of the third embodiment except that the material of the second conductive layer 22 is changed from indium tin oxide to silver.
  • the structure of the device is completely the same, and the light reflection improved electrochromic device is prepared by the same process (top to bottom sequentially stacked as PET / ITO I W0 3 1 PC-L1CI O4-PEG I V2O5 / Ag / Glass).
  • the remaining structure of the light reflection improving electrochromic device of the embodiment 5 is the same as the embodiment except that the reflective metal layer 5 is formed on the first substrate 11 and made of silver.
  • the light-transparent electrochromic device of 1 has the same structure, and the light-reflecting improved electrochromic device is prepared by the same process (from top to bottom, sequentially stacked as Ag I Glass I ITO/WO3) 1 PC-LiC10 4 -PEG IV 2 0 5 1 ITO I PET).
  • the first conductive layer 12 and the second conductive layer 22 of the light-transparent electrochromic device of the first embodiment are connected to a 2.5V DC voltage, and then repeatedly and continuously pass into a voltage of 2.5V or 2.5.
  • V voltage when accessing a 2.5V At the voltage, the electrochromic device changes to a colored state, and when a voltage of +2.5V is applied, the electrochromic device changes to a decolored state), and at a wavelength of 650 nm, ultraviolet light is utilized.
  • a reflectance test of the electrochromic device of Example 5 was carried out using a visible light spectrometer (UV-VIS spectroscope), and the results obtained are shown in Fig. 6. As can be seen from Fig.
  • the reflectance changes from about 47% to about 6% in 10 seconds (the reflectance change value AR the reflectance at the time of complete color removal - the reflectance at the time of complete coloring is 41%), and The change in time can stably maintain the reflectance change value, and thus it can be confirmed that the light reflection improving type electrochromic device of the fifth embodiment does have excellent light adjustment.
  • the remaining structure and implementation of the light reflection improved electrochromic device of the sixth embodiment has the same structure, and the light-reflecting improved electrochromic device is prepared by the same process (the top-down stacking is PET I ITO I W0 3 1 PC-LiC10 4 -PEG IV 2 0 5 1 ITO I Glass I Ag).
  • the remaining structure of the light reflection improving electrochromic device of the seventh embodiment is the same as the embodiment except that the protective layer 6 is formed on the reflective metal layer 5 and made of silicon oxide.
  • the light-reflecting improved electrochromic device of 5 has the same structure, and the light-reflecting improved electrochromic device (the top-down stacking is sequentially stacked as Si0 2 / Ag / Glass/ITO) by the same process.
  • the remaining structure of the light reflection improved electrochromic device of the embodiment 8 and the implementation has the same structure, and the light-reflecting improved electrochromic device (the top-down stack is sequentially stacked as PET / ITO / W0 3 by the same process).
  • the remaining structure of the light-reflecting improved electrochromic device of the embodiment 9 is
  • the light-reflecting improved electrochromic device of Embodiment 7 has the same structure, and the light-reflecting improved electrochromic device (the top-down stacking is sequentially arranged as Si0 2 1 Ag I Glass) by the same process.
  • the remaining structure and implementation of the light-reflecting improved electrochromic device of the embodiment 10 is further except that a transparent protective layer ⁇ is formed on the first substrate 11 and made of silicon oxide.
  • the light-reflecting improved electrochromic device of Example 8 has the same structure, and the light-reflecting improved electrochromic device is prepared by the same process (sequentially stacked from top to bottom as Si0 2 1 PET I ITO I W0 3 I PC-LiC10 4 -PEG IV 2 0 5 / ITO Glass / Ag / Si0 2 ).
  • the improved electrochromic device of the present invention forms the electrochromic layer using an inorganic metal oxide that is not affected by ultraviolet rays, and cooperates with the auxiliary electrochromic layer and the ion conductive layer.
  • the improved electrochromic device of the invention has the advantages of better stability, coloring memory, fast coloration and adjustable coloration, and the use of a hard material and a soft material as the first and second substrates. It can extend life, resist impact and not break easily, and can prevent cracking, image distortion, wrinkles or overlapping situations.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

L'invention concerne un dispositif électrochromique qui comprend une première unité, une deuxième unité et une couche de transfert d'ions. La première unité comprend dans l'ordre un premier substrat, une première couche conductrice et une couche électrochromique sélectionnée dans le groupe comprenant oxyde de tungstène, molybdène, oxyde de titane, oxyde de niobium, oxyde d'iridium ou des combinaisons de ceux-ci. La deuxième unité comprend dans l'ordre un deuxième substrat, une deuxième couche conductrice et une couche électrochromique auxiliaire sélectionnée dans le groupe comprenant oxyde de vanadium, oxyde de nickel, oxyde chromique, oxyde de manganèse, oxyde ferrique, oxyde cuprique, oxyde de rhodium ou des combinaisons de ceux-ci. La couche de transfert d'ions est disposée entre la couche électrochromique et la couche électrochromique auxiliaire, et le premier substrat et le deuxième substrat sont composés de matériaux durs ou de matériaux mous, respectivement.
PCT/CN2006/002844 2006-10-24 2006-10-24 Dispositif électrochromique WO2008049268A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102841473A (zh) * 2011-06-23 2012-12-26 比亚迪股份有限公司 一种电致变色装置及其制备方法
CN106371258A (zh) * 2016-10-21 2017-02-01 北京华逸高科科技有限公司 电致变色薄膜的制备方法及电致变色器件

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