TW201537274A - Electrochromic device and method of manufacturing the same - Google Patents

Abstract

An electrochromic device comprises: a substrate, a first transparent electrode layer, an electrochromic layer, an electrolyte layer and a second transparent electrode layer. The first transparent electrode layer is disposed on the substrate and includes a first transparent conductive layer disposed on the substrate, a first metal layer disposed on the first transparent conductive layer and having a plurality of first island structures, and a second transparent conductive layer disposed on the first metal layer. The electrochromic layer is disposed on the first transparent electrode layer. The electrolyte layer is disposed on the electrochromic layer and provides ions to the electrochromic layer. The second transparent electrode layer is disposed on the electrolyte layer. The electrochromic layer changes its color after receiving the ions provided by the electrolyte layer. The electrochromic device of the present invention provides transparent electrodes having high conductivity and high transmittance to further enhance coloring and decoloring reaction rates of the electrochromic device.

Description

Electrochromic element and method of manufacturing same 【0001】

The present invention relates to an electrochromic element and a method of manufacturing the same, and more particularly to an electrochromic element that utilizes a transparent electrode of a nanostructure to enhance the coloration and color reaction rate of an electrochromic element, and the electrical A method of producing a color-changing element.

【0002】

In view of the current awareness of environmental protection and green energy technology, in addition to the development of new energy sources, energy conservation is also an important issue. Electrochromism used in energy-saving glass is one of the most important components. The principle of discoloration of electrochromic glass is that when a voltage is applied to the end of the color-changing glass, the tungsten oxide in the electro-optic color-changing glass changes chemically, and the color of the original electro-optic color-changing glass is changed.

[0003]

The electrochromic element has high controllability, and only needs to give a small voltage to make a color change, and has a long-term memory effect, so the energy consumption is low, and the energy saving effect can be achieved.

[0004]

The coloring and color-removing reaction rate of electrochromic elements are closely related to the conductivity characteristics of the electrodes. Currently, indium tin oxide (ITO) is used to make transparent electrodes to meet the requirement of high light transmittance of electrochromic elements. However, the conductive properties of ITO decrease as the light transmittance increases. Therefore, a transparent electrode having high light transmittance and high conductivity is required to improve the coloring and decoloring reaction rate of the electrochromic element.

[0005]

In view of the above problems, the present invention provides an electrochromic element having a plurality of island-shaped transparent electrodes of a nanometer grade to enhance the coloration and color reaction rate of the electrochromic element.

[0006]

According to an aspect of the present invention, an electrochromic element is provided, comprising a substrate, a first transparent electrode layer disposed on the substrate, and comprising a first transparent conductive layer disposed on the substrate, disposed at the first transparent conductive a first metal layer having a plurality of first island-like structures on the layer and a second transparent conductive layer disposed on the first metal layer. The electrochromic element further includes an electrochromic layer disposed on the first transparent electrode layer, an electrolyte layer disposed on the electrochromic layer and providing ions to the electrochromic layer, and a second transparent electrode disposed on the electrolyte layer a layer; wherein the electrochromic layer receives the ions provided by the electrolyte layer and then discolors.

【0007】

Preferably, the electrochromic layer may comprise a transition metal selected from the group consisting of oxides of tungsten, oxides of molybdenum, oxides of chromium, oxides of vanadium, oxides of titanium, and oxides of nickel. The oxide, and the electrolyte layer may comprise an oxide of cerium.

[0008]

Preferably, the second transparent electrode layer may include a third transparent conductive layer disposed on the electrolyte layer, a second metal layer disposed on the third transparent conductive layer and having a plurality of second island structures, and being disposed in the second A fourth transparent conductive layer on the metal layer.

【0009】

Preferably, the first transparent conductive layer, the second transparent conductive layer, the third transparent conductive layer, and the fourth transparent conductive layer are made of aluminum-doped zinc oxide (AZO), and the first metal The layer and the second metal layer may be made of silver.

[0010]

Preferably, the first transparent conductive layer, the second transparent conductive layer, the third transparent conductive layer, and the fourth transparent conductive layer may have a thickness in a range of 20 to 40 nm, and the first metal layer and the second metal layer It may have a thickness in the range of 5 to 15 nm.

[0011]

According to another aspect of the present invention, a method of fabricating an electrochromic element, comprising providing a substrate, forming a first transparent electrode layer on the substrate, wherein the first transparent conductive layer is formed on the substrate, in the first transparent A first metal layer having a plurality of first island structures is formed on the conductive layer, and a second transparent conductive layer is formed on the first metal layer. The method of manufacturing an electrochromic element further comprises forming an electrochromic layer on the first transparent electrode layer, forming an electrolyte layer on the electrochromic layer that can provide ions to the electrochromic layer, and forming a second transparent layer on the electrolyte layer An electrode layer, wherein the electrochromic layer can accept discoloration after ion provided by the electrolyte layer.

[0012]

Preferably, the electrochromic layer may comprise a transition comprising a group selected from the group consisting of oxides of tungsten, oxides of molybdenum, oxides of chromium, oxides of vanadium, oxides of titanium, and oxides of nickel. The metal oxide, as well as the electrolyte layer, may comprise an oxide of cerium.

[0013]

Preferably, the step of forming the second transparent electrode layer may include forming a third transparent conductive layer on the electrolyte, forming a second metal layer having a plurality of second island structures on the third transparent conductive layer, and A fourth transparent conductive layer is formed on the second metal layer.

[0014]

Preferably, the first transparent conductive layer, the second transparent conductive layer, the third transparent conductive layer, and the fourth transparent conductive layer may be made of zinc aluminide (AZO), and the first metal layer and the second metal layer may be made of silver. to make.

[0015]

Preferably, the first transparent conductive layer, the second transparent conductive layer, the third transparent conductive layer, and the fourth transparent conductive layer may have a thickness in a range of 20 to 40 nm, and the first metal layer and the second metal layer It may have a thickness in the range of 5 to 15 nm.

[0016]

As described above, the electrochromic element and method of manufacturing the same disclosed herein can have one or more of the following advantages:

[0017]

(1) The electrochromic element and the method of manufacturing the same, using a metal layer of a plurality of island-like structures of a nanometer grade, providing high conductivity compared to the technique of electrochromic elements using ITO as an electrode used in the prior art Transparent electrode with high transparency.

[0018]

(2) The electrochromic element of the embodiment of the present invention can further improve the coloring and decoloring reaction rate of the electrochromic element by the transparent electrode having high conductivity and high transmittance.

100‧‧‧Electrochromic components

110‧‧‧Substrate

120‧‧‧First transparent electrode layer

121‧‧‧First transparent conductive layer

122‧‧‧First metal layer

123‧‧‧Second transparent conductive layer

130‧‧‧Electrochromic layer

140‧‧‧ electrolyte layer

150‧‧‧Second transparent electrode layer

151‧‧‧ Third transparent conductive layer

152‧‧‧Second metal layer

153‧‧‧4th transparent conductive layer

[0019]

1 is a schematic view showing the structure of an electrochromic element 100 of the present invention.

[0020]

2 is a partial cross-sectional view showing a first transparent electrode layer of an electrochromic element according to an embodiment of the present invention.

[0021]

3(a) to 3(e) are the Atomic Force Microscopic of the first transparent electrode layer when the first metal layers made of Ag are 5, 8, 10, 12, and 15 nm, respectively. , AFM) measurement chart.

[0022]

4(a) to 4(e) are field emission scanning electrons when the thickness of the first metal layer 122 made of Ag is 5, 8, 10, 12, 15 nm according to an embodiment of the present invention. A plan view of a field Emission Scanning Electron Microscope (FE-SEM).

[0023]

Fig. 5 is a graph showing the relationship between resistivity, mobility, and carrier concentration of the first transparent electrode layer in the case where the first metal layer made of Ag is 0 to 15 nm according to an embodiment of the present invention.

[0024]

Fig. 6 is a view showing a change in thickness and transmittance of a first metal layer made of Ag in a first transparent electrode layer according to an embodiment of the present invention.

[0025]

Figure 7 is a partial cross-sectional view showing a second transparent electrode layer in accordance with another embodiment of the present invention.

[0026]

Figure 8 is a flow chart showing a method of manufacturing an electrochromic element according to still another embodiment of the present invention.

[0027]

The technical features, contents, and advantages of the present invention, as well as the advantages thereof, can be understood by the present inventors, and the present invention will be described in detail with reference to the accompanying drawings. The subject matter is only for the purpose of illustration and description. It is not intended to be a true proportion and precise configuration after the implementation of the present invention. Therefore, the scope and configuration relationship of the attached drawings should not be interpreted or limited. First described.

[0028]

Referring now to Figure 1, there is shown a schematic structural view of an electrochromic element 100 of the present invention. The electrochromic device 100 mainly includes a substrate 110, a first transparent electrode layer 120, an electrochromic layer 130, an electrolyte layer 140, and a second transparent electrode layer 150. The first transparent electrode layer 120 is coated on the surface of the substrate 110, the electrochromic layer 130 is coated on the surface of the first transparent electrode layer 120, the electrolyte layer 140 is coated on the surface of the electrochromic layer 130, and the second transparent electrode layer 150 is coated. The surface of the electrolyte layer 140 is coated.

[0029]

The substrate 110 may use a transparent material such as a glass or a plastic substrate, but is not limited thereto, or may be fabricated using a reflective material, and is common in that it can provide strength of the electrochromic element and protect the element from external physical damage. The difference between using transparent or reflective materials is that electrochromic elements made of transparent materials can be applied to smart windows that adjust the amount of sunlight incident in the room, top windows that can be used in buildings, tweezers, pattern displays, and sigma displays. , transparent notebook computer screen, etc.; electrochromic components made of reflective materials can be applied to the rearview mirror, and the intensity of the reflected light can be adjusted according to the intensity of the external light through the electronic induction system to achieve the anti-glare effect. Driving is safer.

[0030]

According to an embodiment of the present invention, the electrochromic layer 130 is a main material provided to provide a color change, which is made using WO 3 , but is not limited thereto, and may be selected from MoO 3 , Cr 2 O 3 , V 2 O. 5. Transition metal oxides of the group consisting of TiO 2 and NiO x . It is worth mentioning that the above materials can be attributed to the following three coloring methods: (1) Cathodic coloring material: representative materials such as WO 3 , MoO 3 , and TiO 2 ; (2) oxidation state Anodic coloration material: representative material such as NiOx; (3) Cathodic/Anodic coloration material: representative material such as V 2 O 5 . In an embodiment of the invention, an electrochromic material of reduced state coloring material WO3 is used. When the electrochromic layer 130 has a thickness in the range of 350 to 450 nm, the electrochromic element 100 has better performance. When the electrochromic layer 130 has a thickness of 400 nm, the electrochromic element 100 has better performance. .

[0031]

The electrolyte layer 140 primarily provides ions to the electrochromic layer 130. The electrolytic layer 140 may be a liquid, colloidal or solid electrolyte, wherein the solid electrolyte is further divided into an inorganic material and an organic material. Good electrolytes need to provide fast response times, moderate stability and reversibility. Therefore, the electrolyte must have high scorpion conductivity, the yangzizi must have a high diffusion system in the electrolyte, a wide temperature range of use, high chemical stability to the color-changing layer, and high decomposition potential. The weather resistance of the oxidized metal dielectric layer to the environment (such as temperature, humidity, photolysis, etc.) is preferred. According to an embodiment of the present invention, tantalum oxide (Ta 2 O 5 ) is used as the electrolyte layer, but not limited to, other materials may also be used. The invention uses cerium oxide (Ta 2 O 5 ), which has the characteristics of good conductivity and high transparency of the scorpion, and can solve the problems of liquid leakage, cracking, packaging and the like of the conventional electrochromic element using the liquid electrolyte, and further Improve the life of the component. When the electrolyte layer 140 has a thickness in the range of 250 to 350 nm, the electrochromic element 100 has a better performance, and when the electrolyte layer 140 has a thickness of 300 nm, the electrochromic element 100 has better performance.

[0032]

The configuration of the first transparent electrode layer 120 of the electrochromic element of the embodiment of the present invention will now be described in detail with reference to the accompanying drawings. Referring to FIG. 2, a partial cross-sectional view of a first transparent electrode layer 120 of an electrochromic element 100 in accordance with an embodiment of the present invention. As shown, the first transparent electrode layer 120 may include a first transparent conductive layer 121, a first metal layer 122, and a second transparent conductive layer 123. In order to produce a transparent conductive film having extremely high transmittance in visible light and having extremely low resistivity, and further improving the coloring and decoloring reaction rate of the electrochromic element 100, this sandwich structure is used. The details of the configuration of the first transparent electrode layer 120 will be further explained below.

[0033]

As shown in Fig. 2, the first transparent electrode layer 120 is a sandwich structure which provides contact of electrodes and current in and out. The first transparent conductive layer 121 is disposed on the substrate 110, the first metal layer 122 is disposed on the first transparent conductive layer 121, and the second transparent conductive layer 123 is disposed on the first metal layer 122. . The first transparent conductive layer 121 and the second transparent conductive layer 123 can be made of aluminum zinc oxide (AZO) and serve as an anti-reflection layer in the sandwich structure. The first metal layer 122 is made of silver, but is not limited thereto, and may be made of other metals having high conductivity. A semi-continuous island-like structure having a nanometer grade on the surface of the first metal layer 122 (not shown in FIG. 2, but will be described in detail below with reference to FIG. 3), thereby lifting the light of the first metal layer 122 The penetration rate without sacrificing excessive conductivity. When the film thickness of the metal layer is less than 10-15 nm, a non-continuous island ridge of the island ridge is formed, and when the film thickness of the metal layer is about 15 nm or more, a continuous layered structure is formed; "Continuous island structure" refers to the boundary state of the metal layer from "non-continuous island" to "continuous layer".

[0034]

Referring to FIGS. 3(a) to 3(e), the atomic force of the first transparent electrode layer 120 when the first metal layer 122 made of Ag is 5, 8, 10, 12, and 15 nm, respectively. Atomic Force Microscopic (AFM) measurement chart. The AFM measurement can observe the surface roughness of the film. As shown in the figure, it can be clearly seen that the surface roughness will be smoother with the increase of the thickness of the Ag layer, which is attributed to the non-continuous "island" structure from 5 to 8 nm from the Ag layer. Therefore, the surface of the film is rough, and then the transition to the "semi-continuous" structure of the 10, 12 nm Ag layer, and then into the "continuous" structure of 15 nm, makes the overall surface roughness of the multilayer film more dense and smooth.

[0035]

Referring to FIGS. 4(a) to 4(e), the field emission of the first metal layer 122 made of Ag at 5, 8, 10, 12, and 15 nm according to an embodiment of the present invention is shown. A plan view of a field Emission Scanning Electron Microscope (FE-SEM). As shown, when the thickness of the first metal layer 122 is in the range of 5 to 15 nm, an island-like structure of a nanometer scale as shown in the drawing is formed.

[0036]

Fig. 5 is a graph showing the relationship between resistivity, carrier mobility, and carrier concentration of the first transparent electrode layer 120 according to an embodiment of the present invention when the first metal layer 122 made of Ag is 0 to 15 nm. When the thickness of Ag increases from 5 nm to 15 nm, the resistivity decreases from 7.06 × 10 -4 Ω-cm to 3.8 × 10 -5 Ω-cm, because the Ag layer is electron-injected into the AZO layer from the Ag layer. The 5 nm non-continuous "island" structure to the continuous layer of 15 nm in the Ag layer reduces the resistivity of the overall AZO/Ag/AZO multilayer structure. When the intermediate metal Ag layer is 8 to 10 nm, a significant decrease in resistivity can be clearly observed. This is because the metals of the islands are not in direct contact with each other, and the electron transport path cannot be effectively provided. It is necessary to form a "semi-continuous" structure to significantly reduce the resistivity. A decrease in resistivity can be observed as a change in carrier concentration and mobility. The carrier concentration increases as the thickness of the intermediate Ag layer increases. Generally, the concentration of AZO is about 10 21 cm -3 , and the thickness of the AZO/Ag/AZO multilayer film increases to 2.701 × 10 22 cm -3 when the thickness of the Ag layer is 15 nm, which is about 10 steps. number. When the thickness of the Ag layer is 15 nm, the AZO/Ag/AZO multilayer film has a maximum mobility of about 14.741 cm 2 /V-s.

[0037]

6 is a view showing a change in thickness and transmittance of the first transparent electrode layer 120 in the first metal layer 122 made of Ag according to an embodiment of the present invention, first when the thickness of the Ag layer is 10 nm, in visible light. The transmittance of (300 nm ~ 800 nm) is better than that of the thickness of the Ag layer below 8 nm, which is due to the non-continuous island structure produced by the extremely thin metal coating. Many nano-sized particles absorb a certain range of energy due to the quantization effect of surface plasmons, and the absorbed energy increases, decreases, or broadens as the size of the metal nanoparticles changes. Therefore, the decrease in the observed permeability in the visible spectrum is mainly due to the resonance of the surface plasmon resonance of the metallic silver particles, and the absorption effect disappears after the thickness of the metal reaches 10 nm. It is speculated that the metal coating is no longer Then the island structure. It is worth mentioning that when the metal coating transitions from the island structure to the discontinuous layer, there is a so-called "semi-continuous" transition phenomenon. Although the absorption is gradually increased with the film thickness in this film thickness range, due to the island The 狀 structure begins to splicing one another, causing a large reduction in surface scattering, so the penetration will increase slightly, so when the film thickness is 10 nm, the metal coating is in a semi-continuous transition state.

[0038]

In summary, when the first transparent conductive layer 121 and the second transparent conductive layer 123 have a thickness in the range of 20 to 40 nm, and the first metal layer 122 has a thickness in the range of 5 to 15 nm, the first transparent The electrode layer 120 has better conductivity and transmittance; when the first transparent conductive layer 121 and the second transparent conductive layer 123 have a thickness of 30 nm, and the first metal layer 122 has a thickness of 10 nm, the first transparent electrode layer 120 It has better conductivity and transmittance, but is not limited to, the thickness of the first transparent conductive layer 121, the first metal layer 122, and the second transparent conductive layer 123 may be changed depending on the requirements.

[0039]

Referring to FIG. 1 , the second transparent electrode layer 150 is disposed on the electrolyte layer 140 and may be formed of a transparent conductive layer of indium tin oxide (ITO). However, it is not limited thereto, and may be made of other transparent conductive materials. The second transparent electrode layer 150 is here used as the top electrode of the electrochromic element 100 to provide contact and current in and out of the color changing process electrode.

[0040]

An example of an electrochromic element according to another embodiment of the present invention will now be described with reference to the accompanying drawings. Referring to FIGS. 1 , 2 , and 7 , the electrochromic element of another embodiment of the present invention has the same configuration as the previous embodiment, and thus the same portions are not described herein. The difference is that the second transparent electrode layer 150 is similar in configuration to the first transparent electrode layer 120 in FIG. 2 and will be described in detail below.

[0041]

Figure 7 is a partial cross-sectional view of a second transparent electrode layer 150 in accordance with another embodiment of the present invention. As shown in FIG. 7, the second transparent electrode layer 150 according to another embodiment of the present invention includes a third transparent conductive layer 151, a second metal layer 152, and a fourth transparent conductive layer 153. The coloring and decoloring reaction rate of the electrochromic element 100 of another embodiment of the present invention can be further improved by using this sandwich structure. The third transparent conductive layer 151 is disposed on the electrolyte layer 140, the second metal layer 152 is disposed on the third transparent conductive layer 151, and the fourth transparent conductive layer 153 is disposed on the second metal layer 152. on. As in the previous embodiment, the second metal layer 152 is made of silver, but is not limited thereto, and may be made of other metals having high conductivity. On the surface of the second metal layer 152, there is a semi-continuous island structure as shown in Fig. 3, and as described above, the effect is also to enhance the conductivity and transmittance of the second transparent electrode layer 150.

[0042]

When the third transparent conductive layer 151 and the fourth transparent conductive layer 153 have a thickness in a range of 20 to 40 nm, and the second metal layer 152 has a thickness in a range of 5 to 15 nm, the second transparent electrode layer 150 has a thickness. Good conductivity and transmittance; when the third transparent conductive layer 151 and the fourth transparent conductive layer 153 have a thickness of 30 nm, and the second metal layer 152 has a thickness of 8 nm, the first transparent electrode layer 120 has better conductivity. The thickness and the transmittance are not limited, and the thicknesses of the third transparent conductive layer 151, the second metal layer 152, and the fourth transparent conductive layer 153 may be changed depending on the requirements.

[0043]

Please refer to FIG. 1, FIG. 2, FIG. 7, and FIG. 8. FIG. 8 is a flow chart showing a method of manufacturing an electrochromic element according to still another embodiment of the present invention. As shown in the figure, a substrate 110 (S51) is first provided, and a first transparent electrode layer 120 is deposited by physical vapor deposition on one surface of the substrate 110 (that is, the top surface of the substrate 110 shown in FIG. 1) (S52). a first transparent conductive layer 121 on which AZO is deposited by physical vapor deposition on the substrate 110, a first metal layer 122 formed by depositing silver on the first transparent conductive layer 121 by physical vapor deposition, and A second transparent conductive layer 123 made of AZO is deposited on the first metal layer 122 by physical vapor deposition. Here, the first metal layer 122 has a plurality of island-like structures of a nanometer scale as shown in FIG. 3, and its function is as described above, and thus detailed description thereof will be omitted. The process of fabricating the first transparent conductive layer 121 and the second transparent conductive layer 123 is more precisely described. The RF magnetron sputtering machine is selected under the selection of RF power of 250 W, working pressure of 40 mTorr, and substrate temperature of 70 ° C.來 Sputtering a single layer of AZO thin film with a thickness of 30 nm, and selecting Ag as the intermediate metal layer structure, while the coating condition of Ag metal film is a fixed working voltage of 6 kV, an operating current of 20 mA, a working pressure of 3 mTorr, and a substrate temperature of The first metal layer 122 was vapor-deposited by an electron beam evaporation machine at 100 °C. The materials used in the above layers are merely illustrative of the embodiments of the invention and are not intended to limit the materials used.

[0044]

Next, an electrochromic layer 130 (S53) made of tungsten oxide (WO 3 ) is deposited on the first transparent electrode layer 120 by physical vapor deposition, followed by deposition by physical vapor deposition on the electrochromic layer 130. An electrolyte layer 150 made of tantalum oxide (Ta 2 O 5 ) (S54). Wherein, when the electrochromic layer 130 has a thickness in the range of 350 to 450 nm, and the electrolyte layer 140 has a thickness in the range of 250 to 350 nm, the electrochromic element 100 has better performance when electrochromic The layer 130 has a thickness of 400 nm, and when the electrolyte layer 140 has a thickness of 300 nm, the electrochromic element 100 has better performance.

[0045]

Next, as shown in FIG. 8, after the electrolyte layer 140 is formed, a second transparent electrode layer 150 (S55) is deposited by physical vapor deposition, wherein the AZO is deposited on the electrolyte layer 140 by physical vapor deposition. a third transparent conductive layer 151 is formed, a second metal layer 152 made of silver is deposited on the third transparent conductive layer 151 by physical vapor deposition, and deposited by physical vapor deposition on the second metal layer 152. A second transparent conductive layer 153 made of AZO. Here, the second metal layer 122 has a plurality of island-like structures of nanometer grades as shown in FIGS. 5(a) to 5(e), and its function is as described above, and thus detailed description thereof will be omitted.

[0046]

The fabrication process of the third transparent conductive layer 151 and the fourth transparent conductive layer 153 will be further described herein. A single-layer AZO thin film with a thickness of 30 nm was sputtered by a radio frequency magnetron sputtering machine with a RF power of 250 W, a working voltage of 40 mTorr, and a substrate temperature of 70 ° C, and Ag was used as the intermediate metal layer structure. The coating conditions of the Ag metal film were a fixed operating voltage of 6 kV, an operating current of 20 mA, a working pressure of 3 mTorr, and a substrate temperature of 100 ° C, and the second metal layer 152 was vapor-deposited by an electron beam vapor deposition machine. The fabricated electrochromic element 100 has the first transparent electrode 120 and the second transparent electrode 150 having high transmittance and high conductivity according to the embodiment of the present invention, so that the coloring and discoloration of the electrochromic element can be further improved. reaction speed.

[0047]

In summary, the present invention proposes an electrochromic element and a method of manufacturing the same, using a metal interlayer of a plurality of island-like structures of nanometer grade, compared to the electrochromic element using ITO as an electrode in the prior art. The technology provides transparent electrodes with high conductivity and high transparency. In addition, according to the electrochromic element of the embodiment of the invention, the coloring and decoloring reaction rate of the electrochromic element can be further improved by the transparent electrode having high conductivity and high transmittance. Obviously, the present invention has achieved the desired effect under the prior art, and is not familiar to those skilled in the art. Moreover, the present invention has not been disclosed before the application, and its progress has been made. Sexuality and practicability have been met with the patent application requirements, and patent applications have been filed according to law.

[0048]

While the embodiments of the present invention have been particularly shown and described with reference to the exemplary embodiments thereof, Various changes in form and detail may be made in the spirit and scope of the invention.

Domestic registration information [please note according to the registration authority, date, number order]

no

Foreign deposit information [please note according to the country, organization, date, number order]

no

no

100‧‧‧Electrochromic components

110‧‧‧Substrate

120‧‧‧First transparent electrode layer

130‧‧‧Electrochromic layer

140‧‧‧ electrolyte layer

150‧‧‧Second transparent electrode layer

Claims (10)

[Item 1] An electrochromic element comprising:
a substrate;
A first transparent electrode layer is disposed on the substrate and includes:
a first transparent conductive layer is disposed on the substrate;
a first metal layer is disposed on the first transparent conductive layer, and the first metal layer has a plurality of first island structures; and a second transparent conductive layer is disposed on the first metal layer;
An electrochromic layer is disposed on the first transparent electrode layer;
An electrolyte layer disposed on the electrochromic layer and providing ions to the electrochromic layer; and a second transparent electrode layer disposed on the electrolyte layer, wherein the electrochromic layer receives the electrolyte The layer provides ions after discoloration. [Item 2] The electrochromic element according to claim 1, wherein the electrochromic layer comprises an oxide selected from the group consisting of an oxide of tungsten, an oxide of molybdenum, an oxide of chromium, an oxide of vanadium, an oxide of titanium, And a transition metal oxide of the group consisting of oxides of nickel, and the electrolyte layer comprises an oxide of cerium. [Item 3] The electrochromic element according to claim 1, wherein the second transparent electrode layer comprises:
a third transparent conductive layer is disposed on the electrolyte layer;
A second metal layer is disposed on the third transparent conductive layer, and the second metal layer has a plurality of second island structures; and a fourth transparent conductive layer is disposed on the second metal layer. [Item 4] The electrochromic element according to claim 3, wherein the first transparent conductive layer, the second transparent conductive layer, the third transparent conductive layer and the fourth transparent conductive layer are zinc aluminum oxide (AZO) Made, and the first metal layer and the second metal layer are made of silver. [Item 5] The electrochromic element according to claim 4, wherein the first transparent conductive layer, the second transparent conductive layer, the third transparent conductive layer and the fourth transparent conductive layer have a range of 20 to 40 nm. The inner thickness, and the first metal layer and the second metal layer have a thickness in the range of 5 to 15 nm. [Item 6] A method of manufacturing an electrochromic element, comprising:
Providing a substrate;
Forming a first transparent electrode layer on the substrate, comprising:
Forming a first transparent conductive layer on the substrate;
Forming a first metal layer on the first transparent conductive layer, and the first metal layer has a plurality of first island structures; and forming a second transparent conductive layer on the first metal layer;
Forming an electrochromic layer on the first transparent electrode layer;
Forming an electrolyte layer on the electrochromic layer to provide ions to the electrochromic layer; and forming a second transparent electrode layer on the electrolyte layer,
Wherein, the electrochromic layer receives the ions provided by the electrolyte layer and then discolors. [Item 7] The manufacturing method according to claim 6, wherein the electrochromic layer comprises an oxide selected from the group consisting of an oxide of tungsten, an oxide of molybdenum, an oxide of chromium, an oxide of vanadium, an oxide of titanium, and nickel. The transition metal oxide of the group consisting of oxides, and the electrolyte layer comprising an oxide of cerium. [Item 8] The manufacturing method of claim 6, wherein the step of forming the second transparent electrode layer comprises:
Forming a third transparent conductive layer on the electrolyte;
Forming a second metal layer on the third transparent conductive layer, and the second metal layer has a plurality of second island structures; and forming a fourth transparent conductive layer on the second metal layer. [Item 9] The manufacturing method of claim 8, wherein the first transparent conductive layer, the second transparent conductive layer, the third transparent conductive layer, and the fourth transparent conductive layer are made of aluminum zinc oxide (AZO). And the first metal layer and the second metal layer are made of silver. [Item 10] The manufacturing method of claim 9, wherein the first transparent conductive layer, the second transparent conductive layer, the third transparent conductive layer, and the fourth transparent conductive layer have a range of 20 to 40 nm. The thickness, and the first metal layer and the second metal layer have a thickness in the range of 5 to 15 nm.