WO2008049275A1 - Appareil électrochromique souple - Google Patents

Appareil électrochromique souple Download PDF

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Publication number
WO2008049275A1
WO2008049275A1 PCT/CN2006/002857 CN2006002857W WO2008049275A1 WO 2008049275 A1 WO2008049275 A1 WO 2008049275A1 CN 2006002857 W CN2006002857 W CN 2006002857W WO 2008049275 A1 WO2008049275 A1 WO 2008049275A1
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WO
WIPO (PCT)
Prior art keywords
oxide
group
electrochromic device
layer
flexible
Prior art date
Application number
PCT/CN2006/002857
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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.)
Filing date
Publication date
Application filed by Feng Chia University, Mobiletron Electronics Co., Ltd. filed Critical Feng Chia University
Priority to PCT/CN2006/002857 priority Critical patent/WO2008049275A1/fr
Publication of WO2008049275A1 publication Critical patent/WO2008049275A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K9/00—Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some form of energy
    • 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
    • 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
    • G02F2001/1502—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 complementary cell
    • G02F2001/15025—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 complementary cell having an inorganic electrochromic layer and a second solid organic electrochromic layer
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/02—Materials and properties organic material
    • G02F2202/022—Materials and properties organic material polymeric

Definitions

  • the present invention is directed to an electrochromic device, and more particularly to a flexible electrochromic device.
  • 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. Effectively block the interference of the outside world (such as light, heat). Electrochromic materials are generally classified into organic materials and inorganic materials, and for stability, inorganic materials are preferred, such as tungsten oxide, titanium oxide, and the like.
  • electrochromic devices mostly use glass as a substrate, and in practical use, they are often limited to the material of the substrate and cannot be bent at will, and their use is limited.
  • electrochromic devices cannot be fabricated using a tape-and-reel type (r 0 1 1 t 0 r o l 1 ), making it impossible to provide a low-cost electrochromic color.
  • U.S. Patent No. 6, 1 9 3 3 7 9 discloses that an electrochromic device is mainly used for rearview mirrors in a vehicle (rear V iewmirr 0 r ). See Figure 1 for the electrochromic device.
  • a front element 1 0 0 having a "front surface 1 0 0 a and a -, ⁇ '. - ⁇ - rear surface 1 0 0 b , a spacing from the element 1 0 0 and having a front surface 1 0 1 a and a rear surface 1 0 1 b of the rear element 1 0 1 , a rear surface 1 0 0 b disposed on the front element 1 0 0 0
  • sealing member 10 a conductive layer 1 0 3 on 1 b and a sealing member 1 0 4 disposed between the transparent conductive layer 1 0 2 and the conductive layer 1 0 3. wherein the sealing member 10
  • the transparent conductive layer 1 0 2 and the conductive layer 1 0 3 are mutually coupled to form a compartment 1 0 5 , and the anode 10 5 is accommodated in a solution-like electrochromic color.
  • the variable material, 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 mixed with the electrolyte for conducting ions, so it is necessary to continuously pass a higher voltage to maintain the discoloration state, and thus cannot have color memory effect. ) The effect.
  • the surface of the substrate of this patent must be a polymer which is completely exposed to an organic solvent and which retains its properties and contains an aliphatic hydrocarbon. Materials, but this patent does not mention or teach that the substrate is flexible, and the electrochromic material contained in the chamber is in the form of a solution, which may cause the electrochromic color when the entire device is bent. The material is exposed, which also affects the scope of subsequent applications.
  • U.S. Patent No. 6,1,7,7,7,9 discloses an electrochromic component comprising a substrate 20 0 a conductive coating 2 0 1 and an electrochromic layer 2 0 from top to bottom. 2 - electrolyte layer 2 0 3 , an ion storage layer 2 0 4
  • 0 0 2 0 6 can be made of glass or any plastic, the two conductive coatings 2
  • electrochromic 5 layer 2 0 2 is composed of polydioxythiophene
  • the electrolyte layer 2 0 3 contains a polymer-lithium salt-solvent and a "lighting agent", and the ion storage layer 2
  • 0 4 is made of group n of special metal oxides (eg Ti0 2 - Ce0 2 ).
  • an organic polymer such as oxythiophene is highly susceptible to ultraviolet light and is liable to cause the electrochromic effect of the component to decay or even disappear. Therefore, in the patent, it is necessary to additionally add the light to the electrolyte layer 203. Stabilizer to avoid the influence of the ultraviolet light on the organic polymer.
  • Stabilizer to avoid the influence of the ultraviolet light on the organic polymer.
  • the substrate is flexible and thus affects the scope of subsequent applications. From the above, it can be seen that for an electrochromic device having better stability, coloring memory, fast coloration, and adjustable coloration, there is still a need for considerable improvement in electrochromic devices. Summary of the invention
  • the object of the present invention is to provide a flexible electrochromic device having better stability, coloring memory, fast color removal, and adjustable color depth.
  • the flexible electrochromic device of the present invention comprises a flexible first polymer substrate, a flexible first polymer substrate disposed in parallel with the first polymer substrate, and a An intermediate unit between the first molecular substrate and the second polymer substrate - the intermediate unit sequentially includes: a first conductive layer from the first polymer substrate toward the second polymer substrate ,
  • electrochromic layer an ion conducting layer, an auxiliary electrochromic layer and a second conductive layer.
  • the electrochromic layer is made of a metal oxide selected from the group consisting of tungsten oxide, molybdenum oxide, titanium oxide, cerium oxide, cerium oxide, and the like.
  • the auxiliary electrochromic layer is selected from metal oxides in the group consisting of vanadium oxide, nickel oxide, chromium oxide, manganese oxide, iron oxide, copper oxide, cerium oxide, and the like.
  • the first and second substrates used in the present invention are all made of ruthenium molecules, so that the density and thickness of the ruthenium molecules can be controlled by the process, so that the first and second substrates have better flexibility and are utilized by them. It also has good light regulation after bending, which makes the subsequent use more extensive (such as automotive components (such as glass, sunroof, mirror), electronic paper, electronic products and smart windows, etc.
  • the electrochromic device is formed by using an inorganic metal oxide which is not affected by ultraviolet rays to form an electrochromic layer, and is provided to assist in controlling the decoloring and coloring state.
  • An auxiliary electrochromic layer, and an ion conducting layer for conducting 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 electrochromic device of the present invention has the advantages of better stability (especially anti-ultraviolet light property), coloring memory, fast decoloring, and adjustable coloration, especially When the flexible electrochromic device of the present invention is bent at 90°, it still has excellent light regulation.
  • Figure 1 is an illustration of the structure of a known electrochromic device
  • Figure 2 is a schematic view of another known electrochromic device
  • Figure 3 is a schematic illustration of the practice of the present invention The structure of the light-transmissive electrochromic device of Example 1,
  • FIG. 4 is a schematic view showing the case where the light transmissive flexible electrochromic device of Embodiment 1 of the present invention is bent by 90°;
  • Figure 5 is an ultraviolet light-visible light spectrum diagram illustrating an embodiment of the present invention
  • FIG. 6 is a schematic view showing the structure of the light-reflecting flexible electrochromic device of Embodiment 4 of the present invention
  • Figure 7 is a schematic view showing the structure of a light-reflecting flexible electrochromic device of Embodiment 5 of the present invention
  • Figure 8 is an ultraviolet light-visible light spectrum diagram illustrating an embodiment of the present invention
  • FIG. 5 is a result of a reflectance test performed by a light-reflecting flexible electrochromic device
  • FIG. 9 is a schematic view showing that the light reflection of Embodiment 6 of the present invention is flexible Structure of an electrochromic device
  • Figure 10 is a diagram showing the structure of a light-reflecting flexible electrochromic device of Embodiment 7 of the present invention.
  • Figure 1 is a diagram showing the structure of a light-reflecting flexible electrochromic device of Embodiment 8 of the present invention.
  • Figure 1 2 is a s diagram illustrating the structure of the light-reflective flexible color of the embodiment 9 of the present invention.
  • the flexible electrochromic device of the present invention comprises a flexible first polymer substrate, a flexible first polymer substrate disposed in parallel with the first polymer substrate, and a first molecular substrate disposed on the first molecular substrate And an intermediate unit between the second molecular substrate and the intermediate unit, the first conductive layer, the electrochromic layer, and the ion conductive layer are sequentially included in the direction of the first polymer substrate An auxiliary electrochromic layer, and - a second two conductive layer.
  • the electrochromic layer is made of tungsten oxide, molybdenum oxide, titanium oxide, hafnium oxide and the like which are selected from the group consisting of the following oxides.
  • a group of the auxiliary electrochromic layers are selected from metal oxides of the group consisting of vanadium oxide, nickel oxide, chromium oxide, manganese oxide, iron oxide, copper oxide, Cerium oxide and the like, and in a specific embodiment of the invention, the electrochromic layer is made of tungsten oxide, and the electrochromic layer is made of vanadium oxide.
  • the first molecular substrate and the first molecular substrate are required to have flexibility, that is, can be changed back to the original shape after folding, and are made of a polymer material.
  • the first polymer substrate and the second polymer substrate are respectively made of a material selected from the group consisting of: polyethylene terephthalate: P 01 ye thyl ene terephthalate ), polyphthalate
  • the first conductive layer and the second conductive layer may be any gold having conductivity Made of genus, metal alloy or metal oxide.
  • the first conductive layer and the second conductive layer respectively comprise a metal oxide selected from the group consisting of tin oxide (tin 0X ide), indium tin oxide (iridium tin)
  • the first conductive layer contains a silver, aluminum and the like selected from the group consisting of a combination
  • the second conductive layer comprises a metal oxide selected from the group consisting of: tin oxide, indium tin oxide, antimony tin oxide, fluorine-doped tin oxide, antimony tin fluoride, oxidation Zinc and the combination of these.
  • the first conductive layer contains a metal oxide selected from the group consisting of tin oxide, indium tin oxide, antimony tin oxide doped tin oxide, antimony tin fluoride,
  • the zinc oxide and the set of n and the second conductive layer comprise a combination of silver, aluminum and the like selected from the group consisting of the following.
  • 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 made of indium tin oxide.
  • silver constitute o
  • the ion conducting layer is gel and contains a lithium-containing salt, a dispersing agent, and a thickening agent.
  • a lithium-containing salt for example, iNb0 3 or Ta 2 0
  • a gel-like ion conductive layer can effectively increase ions. Conduction speed, and shorten the de-coloring/coloring time, and only need to apply a lower voltage to complete the decoloring or coloring state.
  • the lithium-containing salt is selected from the group consisting of lithium perchlorate [LiCO, J, lithium trifluoromethanesulfonamide [LiN (S0 2 CF a ), ⁇ , "", lithium fluoromethanesulfonate [Li0 3 SCF 3 ], lithium nonafluorobutane sulfonate [LiO 3 SC 4 F 9 ], chlorine Lithium [Li CI], lithium hexafluorophosphate [LiPF 6 ], and a combination of these.
  • the dispersing agent for the ion conducting layer is selected from the group consisting of propylene carbonate, ethylene carbonate, and Y-butyrolactone.
  • y -butyrolactone s acetonitrile dimethyl methamine ( dimethyl f ormami de ) and a combination thereof.
  • the thickener for the ion conducting layer is selected from the group consisting of polyethylene glycol (PEG), polypropylene glycol, polyethylene oxide (olyethylene) Oxide), polyether polyvinyl alcohol (polyvinyl a 1 coho 1 ), polymethy 1 methacrylate: polyacrylonitrile (polyacrylonitrile), polydimethyl methacrylate [poly ( N) , N-dimethylacrylamide ) ], poly[ 2 - ( 2 -methoxyethoxy) - ethoxy] phosphazene Cpoly [ 2 - ( 2 -methoxyethoxy ) - e th 0 X y 1 ph 0 s phazene, Poly(oxymethylene-oligooxyethylene) [poly
  • the electrochromic device further comprises a reflective metal layer disposed on the first polymer substrate or the second polymer substrate.
  • the reflective metal layer may comprise any metal having photoreflective properties.
  • the reflective metal layer comprises a metal selected from the group consisting of silver, aluminum, and a combination thereof.
  • the electrochromic device further comprises a protective layer disposed on the reflective metal layer, the purpose of which is to prevent the reflective metal layer from being scratched
  • the protective layer contains a substance selected from the group consisting of silicon oxide (SiO 2 ), titanium oxide (Ti0 2 ), aluminum oxide (A 1 2 0 3 ), silicon nitride.
  • SiO 2 silicon oxide
  • Ti0 2 titanium oxide
  • a 1 2 0 3 aluminum oxide
  • silicon nitride silicon nitride.
  • J epoxy resin ( ep 0 X y resin ) ⁇ acrylic resin
  • the electrochromic device further comprises a first polymer disposed on the first polymer a transparent protective layer on the substrate or on the second polymer substrate, the purpose of which is to protect the substrate
  • the transparent protective layer comprises a group selected from the group consisting of oxidized laurel, titanium oxide, aluminum oxide, silicon nitride, epoxy resin, acrylic resin, urethane resin, and silicone resin. , a poly-p-xylene resin, a polyimine, and a combination 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 an adhesive layer to facilitate adhesion while improving the reliability and weather resistance of the entire device. .
  • the adhesive layer can be any adhesive material and can be patterned
  • the adhesive layer is composed of a substance selected from the group consisting of Made of: epoxy resin, acrylic resin, urethane resin silicone resin, poly-p-xylylene resin, polyimine, and a group of P
  • the first conductive layer and the second conductive layer, the electrochromic layer and the auxiliary electrochromic layer of the electrochromic device of the present invention can be prepared according to any known method, such as physical vapor deposition.
  • Sol-gel method (s 01 - - ge 1 ), chemical solution deposition (chemical solution dep 0 siti 0 n ), chemical vapor deposition (chemical vapor depositi 0 n coating method, plasma-assisted chemical vapor deposition) ( ias ma ass isted chemical vapor deposition) method, electroplating (piating) fe, electroless plating (elcctroless lating) method and vacuum deposition (vacuum deposition) method, etc.
  • another ij is as in the above-mentioned special cases lj case
  • the methods described are hereby incorporated by reference.
  • the two conductive layers of the device are electrically connected to a power source, and the voltage is applied to cause an electrochromic effect.
  • the power source is a DC power source.
  • the electrochromic device of the present invention has direct flexibility because of its flexibility. Apply to any object (such as directly attached to a window).
  • it when it is made into a light-reflecting flexible electrochromic device, it can be used in automotive rearview mirrors or other mirrors.
  • Embodiment 1 of the flexible electrochromic device of the present invention comprises a first polymer substrate 1 made of polyethylene terephthalate, and a parallel with the first polymer substrate 1. a second polymer substrate 2 and an intermediate unit 3 made of polyethylene terephthalate at intervals, the intermediate unit 3 is oriented from the first polymer substrate 1 toward the second polymer substrate Included in sequence; a first conductive layer 3 1 , an electrochromic layer 3 2 , an ion conducting layer 3 3 and an adhesive layer 3 6 , an auxiliary electrochromic layer 3 made of vanadium oxide 4 and a second conductive layer 3 5 .
  • the first conductive layer 3 1 and the second conductive layer 3 5 are all made of indium tin oxide, the electrochromic layer 3 2 is made of tungsten oxide, and the ion conductive layer 34 is made of carbonic acid.
  • C. Ester, ester with a concentration of 1 M L, i C 1 0 , . and polyethylene glycol (1 will be referred to as
  • the P C - L i C I O 4 - P E G " ) is formed.
  • the adhesive layer 3 6 is formed of an epoxy resin.
  • the light transmissive flexible electrochromic device of the first embodiment is prepared as follows: the first polymer substrate 1 and the second polymer substrate 2 having a thickness of 175 ⁇ m are respectively coated on the first polymer substrate 1 and the second polymer substrate 2 Layer of indium tin oxide, each forming a resistance value of 3
  • the first conductive layer 3 1 is coated with a layer of tungsten oxide and the second conductive layer 3 5 is coated with a layer of vanadium oxide to form the electrochromic layer 3 2 .
  • the finished semi-finished product is expressed as "PET / IT0 / W0 3 ”
  • the auxiliary electrochromic layer 3 4 (the finished semi-finished product is expressed as "PET / IT0 / V 2 0 5 ").
  • An epoxy resin is separately applied to the electrochromic layer 3 2 and the auxiliary electrochromic layer 3 4 by a dispenser, and a screen printing method is used.
  • the above electrolyte is applied between the electrochromic layer 3 2 and the auxiliary electrochromic layer 34.
  • the electrochromic layer 3 2 is combined with the auxiliary electrochromic layer 34 by applying pressure, and is cured by ultraviolet rays at room temperature to obtain the light-transmissive flexible method of the embodiment 1.
  • the electrochromic device (sequentially stacked from top to bottom is PET / IT0 / W0 3 I PC-LiC10 4 -PEG IV 2 0 5 I ITO I PET ).
  • the light-transmitting flexible electrochromic device of the embodiment 1 is bent at 90 ° (as shown in Fig. 4), and after being restored to the original state, the following test is performed: '
  • the first conductive layer 31 and the second conductive layer 35 is connected to a DC voltage of 3 V, and then repeatedly and continuously through the + 3 V or - 3 V voltage (when fed - voltage at 3 V, the electroluminescent
  • the color change device will change to a colored state, and when the voltage of + 3 V is applied, the electrochromic device will be converted into a decolored state), and at the wavelength of 65 nm, the ultraviolet light-visible spectrometer will be used ( UV-VIS spectroscope)
  • the transmittance test of the electrochromic device of Example 1 was carried out, and the results obtained are shown in Fig. 5. As can be seen from Fig.
  • the structure of the light-reflective flexible electrochromic device of the second embodiment is different from the light-transmissive flexible device of the embodiment 1 except that the material of the first conductive layer 31 is changed from indium tin oxide to silver.
  • the structure of the color-changing device is the same, and the light-reflecting and squeezing electrochromic device is prepared by the same process (sequentially stacked from top to bottom as PET 1 Ag 1 wo a , 1 PC-LiC10 4 - PEG 1 V 2 0 5 1 IT01 PET ).
  • the structure of the color change device is the same, and the light reflection flexible electrochromic device is made from top to bottom according to the same process.
  • PET / IT0 / wo 3 1 1 PC- Li C10 4 -PEG 1 V 2 0 5 / 'Ag 1 PET Example 4
  • the remaining structure of the light-reflecting electrochromic device of the fourth embodiment is
  • the light-transmissive flexible electrochromic device of Embodiment 1 has the same structure, and the light-reflecting flexible electrochromic device is manufactured by the same process (the top-down stacking is Ag 1 PET 1 IT0 1 wo 3 1
  • the remaining structure of the light-reflecting flexible electrochromic device of the fifth embodiment is further except that the reflective metal layer 4 is formed on the first polymer substrate 2 and made of silver.
  • the light-transmissive flexible electrochromic device of the embodiment 1 has the same structure, and the light-reflecting flexible electrochromic device is prepared by the same process (the top-down stacking is PET 1 IT0) / ' W0 3 1
  • the light-reflecting flexible electrochromic device of the embodiment 5 is folded.
  • the following test is performed: Connect the first conductive layer 3 1 and the first conductive layer 3 5 to a 3 V DC voltage and then repeatedly and sell the + 3 V or - 3 V voltage (when When the voltage of -3 V is applied, the electrochromic device changes to a colored state, and when the voltage of +3 V is applied, the electrochromic device changes to a decolored state), and at the same time, the first polymer
  • the substrate 1 is provided with ultraviolet light having a wavelength of 65 nm, and the reflectivity of the reflectance test of the electrochromic device of the fifth embodiment is performed by using an ultraviolet-visible spectrometer as shown in FIG.
  • the change can stably maintain the reflectance change value, thereby demonstrating that the light-reflecting flexible electrochromic device of the embodiment 5 does have excellent light regulation.
  • the remaining structure of the light-reflecting flexible electrochromic device of Embodiment 6 and the implementation thereof are provided except that a protective layer 5 is formed on the reflective metal layer 4 and made of silicon oxide.
  • the light-reflecting flexible electrochromic deformation of Example 4 has the same structure, and the light-reflecting flexible electrochromic device is prepared by the same process (from top to bottom, sequentially stacked as Si0 2 / Ag / PET / IT0 I PC- LiC10 wide PEG / V 2 0 5 / ITO / PET) 0 embodiment ⁇ embodiment
  • the light-reflecting flexible electrochromic device of the seventh embodiment The structure is the same as that of the light-reflecting flexible electrochromic device of the real 5, and the light-reflecting flexible electrochromic device is manufactured by the process (the second to the next are sequentially stacked as PET TO W0 PC) -LiC10 4 -PEG IV 2 0 TO PET A SiO Example 8
  • the rest of the light-reflecting electrochromic device of the embodiment 8 is provided except that a transparent protective layer 6 is formed on the second polymer substrate 2 and made of silicon oxide.
  • the structure is the same as that of the light-reflecting flexible electrochromic device of the embodiment 6, and the light-reflecting and flexible electrochromic device is prepared by the same process (the top-down stack is sequentially stacked as Si0 2 / Ag / PET
  • the remaining structure of the light-reflecting flexible electrochromic device of the embodiment 9 is further except that a transparent protective layer 6 is formed on the first polymer substrate 1 and made of silicon oxide.
  • the light-reflecting flexible electrochromic device is the same as that of the light-reflecting flexible electrochromic device of the first embodiment, and the light-reflecting and flexible electrochromic device is formed by the same process (sequentially stacked from top to bottom as S: : 1 PET 1 ITO
  • the flexible electrochromic device of the present invention uses a flexible polymer material as a substrate and uses an inorganic metal oxide which is not affected by ultraviolet rays to form the electrochromic layer and is provided with the auxiliary.
  • the electrochromic layer and the ion-conducting layer make the flexible electrochromic device of the invention have the advantages of better stability, easy control of coloring and decoloring state, and adjustable coloring depth, and can be made according to actual needs.
  • Light-transmitting or light-reflecting flexible electrochromic device which has good light regulation after bending, is particularly applicable to an energy-saving product having a curved surface such as automobile components (such as glass, skylight, backlight) Mirror), electronic paper, electronic product table

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

Abstract

Un appareil électrochromique souple comprend: un premier substrat à poids moléculaire élevé, un deuxième substrat à poids moléculaire élevé et une couche intermédiaire qui comporte une première couche de conduction, une couche électrochromique, une couche de conduction ionique, une couche électrochromique de soutien et une deuxième couche de conduction qui sont disposées dans cet ordre depuis le premier substrat à poids moléculaire élevé jusqu'au deuxième substrat à poids moléculaire élevé. La couche électrochromique est sélectionnée dans le groupe formé par l'oxyde de tungstène, l'oxyde de molybdène, l'oxyde de titane, l'oxyde de niobium, l'oxyde d'indium et les combinaisons de ces derniers. La couche électrochromique de soutien est sélectionnée dans le groupe formé par l'oxyde de vanadium, l'oxyde de nickel, l'oxyde de chrome, l'oxyde de manganèse, l'oxyde de fer, l'oxyde de cuivre, l'oxyde de rhodium et les combinaisons de ces derniers.
PCT/CN2006/002857 2006-10-25 2006-10-25 Appareil électrochromique souple WO2008049275A1 (fr)

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Application Number Priority Date Filing Date Title
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WO2008049275A1 true WO2008049275A1 (fr) 2008-05-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103135305A (zh) * 2011-11-25 2013-06-05 亚树科技股份有限公司 具有多孔结构的电致变色装置及其制程方法
CN103135306A (zh) * 2011-11-25 2013-06-05 亚树科技股份有限公司 具有复合电致变色材料的电致变色组件
CN103186003A (zh) * 2011-12-28 2013-07-03 亚树科技股份有限公司 可挠式有机电致变色装置及其制程方法

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CN1506437A (zh) * 2002-12-06 2004-06-23 财团法人私立逢甲大学 电致色变材料及其制备方法
CN1492274A (zh) * 2003-08-26 2004-04-28 广州市光机电工程研究开发中心 全固态塑料电致变色器件及其制备方法
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CN103135305A (zh) * 2011-11-25 2013-06-05 亚树科技股份有限公司 具有多孔结构的电致变色装置及其制程方法
CN103135306A (zh) * 2011-11-25 2013-06-05 亚树科技股份有限公司 具有复合电致变色材料的电致变色组件
CN103186003A (zh) * 2011-12-28 2013-07-03 亚树科技股份有限公司 可挠式有机电致变色装置及其制程方法

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