CN103885264A - Reversible electrochromism casing and manufacturing method thereof - Google Patents
Reversible electrochromism casing and manufacturing method thereof Download PDFInfo
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- CN103885264A CN103885264A CN201210554991.9A CN201210554991A CN103885264A CN 103885264 A CN103885264 A CN 103885264A CN 201210554991 A CN201210554991 A CN 201210554991A CN 103885264 A CN103885264 A CN 103885264A
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Abstract
The invention provides a method for manufacturing a reversible electrochromism casing. The method includes the following steps that a base material layer is provided; a tungsten oxide layer is formed on the base material layer, and meanwhile, the tungsten oxide layer includes a structure of tungsten-oxygen single bond bonding and tungsten-oxygen double-bond bonding; an electrolytic bath for containing electrolyte is provided, and the electrolyte contains sodium chloride solution and sodium bicarbonate solution; the base material layer and the tungsten oxide layer are soaked in the electrolyte; a color changing electric field is responded so as to embed positive ions into the tungsten oxide layer or remove the positive ions from the tungsten oxide layer, and finally, the surface of the tungsten oxide layer shows bright-colored luster which is differentiable by naked eyes.
Description
Technical field
The invention relates to a kind of electrochromism object, and particularly about one reversible electrochromism object part and manufacture method thereof.
Background technology
Electrochromism (Electrochrom) means that material is under impressed voltage or electric field action, and reversible variation can occur for its color or transparency.In the time of impressed voltage or electric field disappearance, material color or transparency return back to original state.Because electrochromic material has memory function, therefore can be widely used in the fields such as display module, photo chromic glass, storage medium and decorative appearance.The material conventionally with colour change function can comprise base material and be formed at the electrochomeric films on base material.
Compared to nickel oxide material, Coating Materials is main mainly with tungsten oxide at present, mainly because tungsten oxide plated film fusing point is higher and wearing quality is better, have significant electrochromism, gas-discoloration, photochromic characteristic, it can be used for making flat-panel monitor, photoelectricity variable color display window, have the optical device of read-write wiping function, optical modulation device, gas sensor, humidity temperature pickup etc.
The device of electrochromism generally can be categorized as a first mode device or one second mode device.This first mode device is anode assembly, i.e. the variation of material color is because the situation that electronics and kation shift out simultaneously, and material can be selected from iridium, rhodium, nickel and cobalt; This second mode device is cathode assembly, i.e. the variation of material color is due to electronics and the concurrently injected situation of kation, and material is tungstic acid (Tungsten Oxide, WO3) or manganese trioxide (MnO3).
Cause the mechanism of tungstic acid electrochromism to be, apply negative electricity and be positioned at electrochromism device and electronics and kation injected simultaneously and tungstic acid structure is rearranged generate to contain cationic tungsten oxygen compound.In the time applying positive electricity and be positioned at electrochromism device, because positive negative attracts to cause electronics and kation while moving-out device, be referred to as reversed reaction and present bleached state.If, by current interruptions, color will maintain a period of time and just can take off gradually, is referred to as memory characteristic after applying negative potential and making it painted.
It is colourless that WO 3 film can present near-transparent before variable color not, because under the scope of visible wavelength, cannot make to be excited to conduction band at the electronics of valency electricity band, represent that tungstic acid needs shorter wavelength to produce jump by excitation electron, so cause the electronics in tungstic acid valence band can not absorb any visible ray, therefore can to present near-transparent colourless for taint-free film.
Tungstic acid metachromasia formula (1) is as follows:
M+ represents the kation of hydrogen, lithium and sodium one class, and MXWO3 is referred to as tungsten bronze (Tungsten Bronze), and color presents mazarine or bronze colour.
Known ornamental plated film can be divided into dry type and two kinds of processing procedures of wet type.Dry process is used physical vapor Shen to amass long-pending method (Chemical Vapor Deposition, CVD) the two large classes of method (Physical Vapor Deposition, PVD) and chemical gaseous phase Shen conventionally.For example utilize electron beam evaporation plating WO 3 film, and attempt changing under the condition of parameter (such as film thickness, evaporation air pressure, evaporation temperature, evaporation speed and annealing in process etc. parameter) impact of research on electrochromic effect.Forefathers once adopted different thin film compositions and thickness to present different colours, however the look that this method produces levy not tool reversible with return Complex, and its processing procedure time is also longer.In addition, wet process is adopted the mode Come combination with decorative surfaces of allotment dye colour.Those methods are levied reversibility except the look that tool is not good, have more produced waste water handling problem.
Summary of the invention
Comprehensive speech, known electrochromism shell part and film plating process urgently improve.In view of this, this case inventor further investigation, work with perseverance, finally successfully develop a kind of innovation and effective electrochromism shell part and manufacture method thereof, and after experiment and improvement repeatedly, can, with novel technology thinking and kind and approachable implementation mode, from the known problem of basic solution, be expected to provide user more attractive in appearance and practical shell part.
One embodiment of the invention system proposes a kind of electrochromism object.This electrochromism object comprises a substrate layer and a metal oxide layer.This substrate layer is nontransparent material, and this metal oxide layer is formed on this substrate layer, and wherein this metal oxide layer comprises the structure of metal and oxygen singly-bound bond and metal and the two key bonds of oxygen simultaneously.
One embodiment of the invention system proposes the method for a kind of manufacture one reversible electrochromism shell part.The method comprises the following steps: to provide a substrate layer, and it is nontransparent material; And form a tungsten oxide layer on this substrate layer, wherein this tungsten oxide layer comprises tungsten oxygen singly-bound bond and the two key bond structures of tungsten oxygen simultaneously.
One embodiment of the invention system proposes a kind of method that makes an electrochromism object variable color.The method comprises the following steps: to provide this electrochromism object, wherein this electrochromism object tool one first color; This electrochromism object is positioned over and is contained in a cationic solution; And this solution is applied to a voltage, make this first color become one second color.
The applicable product of the technology of the present invention comprises spectacle frame, shell, watchband, ornaments, 3C electronic product or mobile phone protective cover.
Brief description of the drawings
Fig. 1 is that tungstic acid of the present invention is placed on Raman spectrum measured on silicon pedestal.
Fig. 2 is had the electrochromism shell part schematic diagram of individual layer plated film according to an embodiment of the invention.
Fig. 3 is had the electrochromism shell part schematic diagram of two-layer coating according to an embodiment of the invention.
Fig. 4 is had the electrochromism shell part schematic diagram of triple-layer coating according to an embodiment of the invention.
Fig. 5 is a kind of according to an embodiment of the invention flow chart of steps of manufacturing electrochromism object
Fig. 6 A is the schematic diagram of color-changing device according to an embodiment of the invention, and wherein substrate layer is conductive material.
Fig. 6 B is the schematic diagram of color-changing device according to an embodiment of the invention, and wherein substrate layer is non-conductive material.
Fig. 7 is a kind of according to an embodiment of the invention method that makes the variable color of electrochromism shell part.
[primary clustering symbol description]
01: electrochromism shell part
10: substrate layer
10A: coating conductive layer
11: the first metal oxide layers
11A: tungsten oxide layer
12: the second metal oxide layers
13: the three metal oxide layers
14: dopant
21: direct supply
22: the first voltage ends
23: second voltage end
24: to electrode
25: cell body
26: aqueous solution
Embodiment
The present invention is by following preferred embodiment and coordinate graphicly, is described in further detail.
Refer to Fig. 1, Fig. 1 is that tungstic acid of the present invention is placed on Raman spectrum measured on silicon pedestal.Transverse axis represents Raman shift (Raman Shift), is also called wave number, and the longitudinal axis is absorption intensity (au).Fig. 1, first peak value being occurred by left-to-right side (Raman shift is 520 cm-1) is the absorption intensity after scattering that silicon carrier shows; Second peak value, in the time that Raman shift is 750 cm-1, reflects in tungstic acid layer the absorption intensity of the structure (W+6-O) of sexavalence tungsten and oxygen singly-bound bond; The 3rd peak value, in the time that Raman shift is 953 cm-1, reflects in tungstic acid layer, the absorption intensity of the structure (W+6=O) of the two key bonds of sexavalence tungsten and oxygen; The 4th peak value, in the time that Raman shift is 980 cm-1, reflects in tungstic acid layer the absorption intensity of the structure (W+5-O) of pentavalent tungsten and oxygen singly-bound bond.It is worth mentioning that, tungstic acid layer, under sweep electron microscope, presents loose post Like structure image.
Fig. 2 is had the electrochromism object schematic diagram of individual layer plated film according to an embodiment of the invention.Electrochromism object of the present invention can be 3C Product shell part, 3C Product protection valve jacket, ornaments (as necklace, ring, earrings, bracelet), accessory (as wrist-watch, belt, eyeglasses frame) etc.Please refer to Fig. 2, electrochromism object 01 comprises substrate layer 10 and is arranged at the first metal oxide layer 11 on substrate layer 10, and this first metal oxide layer 11 is positioned at a top layer of this electrochromism object 01.Substrate layer 10 is one to be selected from the ground of 3C Product shell part, 3C Product protection valve jacket, ornaments or accessory; its material can be metal, metallic compound or macromolecular structure; specifically; this substrate layer 10 is nontransparent material; this substrate layer 10 is a 3C Product shell part ground in the present embodiment, and material is the stainless steel after polishing.
The material of the first metal oxide layer 11 generally can be selected from the oxide of iridium, rhodium, nickel, cobalt, tungsten and manganese, but while considering the demands such as nontoxic, environmental protection, high rigidity, abrasion performance and resistance to chemical attack, tungsten oxide is first-selected.The present embodiment is, with the long-pending sputter process in physical vapor Shen, the first metal oxide layer 11 is coated on to substrate layer 10, and sputtered target material is taking tungsten target as main, and the tungsten oxide layer of formation amorphous structure.
This tungsten oxide layer can more comprise a dopant, this dopant more comprise nitrogen and silicon at least one of them, can set the color and luster of electrochromism object 01.
In another embodiment, with long-pending sputter process coating the first metal oxide layer 11 in physical vapor Shen, in substrate layer 10, sputtered target material is the combination of tungsten target and nitrogen, oxygen, thereby has formed nitrogenous tungsten oxide layer.
In another embodiment, with long-pending sputter process coating the first metal oxide layer 11 in physical vapor Shen, in substrate layer 10, sputtered target material is the combination of tungsten target and silicon, oxygen, thereby has formed siliceous tungsten oxide layer.
But the mentioned tungsten oxide layer of this case embodiment all shows the raman spectral characteristics that is same as Fig. 1, there is the structure of tungsten oxygen singly-bound bond and two key bonds simultaneously.
In the present embodiment, the argon oxygen ratio of sputtering equipment is 1.1 ~ 1.2, electric current is 1 ~ 2 ampere, can form thickness and be less than 500 how rice (nm), visible spectrum color and luster are 400～600 the first metal oxide layers 11 of cream-coloured system how.
In another embodiment, can be less than at the upper sputter of substrate layer 10 500 the first metal oxide layers 11 of rice how taking tungsten oxide as main, thickness, the argon oxygen ratio of wherein said sputter is 1 ~ 1.2, electric current is 0.5 ~ 1A.
In another embodiment, can be less than at the upper sputter of substrate layer 10 500 the first metal oxide layers 11 of rice how taking tungsten oxide as main, thickness, the argon oxygen ratio of wherein said sputter is 1 ~ 1.2, electric current is 0.3 ~ 0.5A.
Fig. 3 is had electrochromism object 02 schematic diagram of two-layer coating according to an embodiment of the invention.As shown in Figure 3, electrochromism object 02 comprises substrate layer 10, is arranged at the first metal oxide layer 11 on substrate layer 10 and is arranged at the second metal oxide layer 12 on the first metal oxide layer 11, and the second metal oxide layer 12 is positioned at a top layer of this electrochromism object 02.In this embodiment, can be on the first metal oxide layer 11 sputter be less than 500 the second metal oxide layers 12 of rice how taking tungsten oxide as main, thickness, the argon oxygen ratio of wherein said sputter is 1 ~ 1.2, electric current is 2A, its color and luster presents how rice of visible spectrum 400～500.
Fig. 4 is had electrochromism object 03 schematic diagram of triple-layer coating according to an embodiment of the invention.As shown in Figure 4, electrochromism object 03 comprises substrate layer 10, but, if when the material of substrate layer 10 belongs to non-conductive material, need on substrate layer 10, to carry out separately planarization, to form a planarization layer, as be coated with a macromolecular material, and utilize ultraviolet lighting to solidify or heat is dried and solidified, then be coated with comprise titanium, aluminium, nickel and stainless steel at least one of them conductive material refer to Fig. 6 B to form a conductive layer 10A(on this planarization layer), wherein the thickness of this conductive layer 10A is less than 3 microns.The curing processing procedure time of this ultraviolet lighting is less than 5 minutes, and the heat that this heat is dried curing process is dried temperature and is less than 30 minutes between 80 ~ 120 DEG C, set time.Be arranged on substrate layer 10 or this conductive layer 10A on the first metal oxide layer 11, be arranged at the second metal oxide layer 12 on the first metal oxide layer 11 and be arranged at the 3rd metal oxide layer 13 on the second metal oxide layer 12, and the 3rd metal oxide layer 13 is positioned at the top layer of this electrochromism object 03.In this embodiment, can be on the second metal oxide layer 12 sputter be less than 500 the 3rd metal oxide layers 13 of rice how taking tungsten oxide as main, thickness, the argon oxygen ratio of wherein said sputter is 1 ~ 1.2, electric current is 2A, its color and luster presents how rice of visible spectrum 500 ~ 600.
Referring to Fig. 5 and the 6th figure.Fig. 5 is a kind of according to an embodiment of the invention flow chart of steps of manufacturing electrochromism object, this electrochromism object has comprised: the nitrogenous or silicon of substrate layer 10, metal oxide layer 11, dopant 14(), metal oxide layer 11 is the top layer that is positioned at this electrochromism object.
Fig. 5 is a kind of according to an embodiment of the invention method of manufacturing electrochromism object, and the method comprises the following steps:
In step 501, a substrate layer 10 is provided, it is nontransparent material, this substrate layer 10 is one to be selected from the ground of 3C Product shell part, 3C Product protection valve jacket, ornaments or accessory.
In step 502, for this substrate layer 10, carry out degreasing, clean and oven dry supervisor.
In step 503, the composition of material is done to one and judge: if this substrate layer 10 is for non-conductive material, first carry out step 504.
In step 504, on substrate layer 10, carry out planarization, to form a planarization layer, as be coated with a macromolecular material, and utilize the curing or hot baking of ultraviolet lighting to solidify, be coated with and comprise that at least one of them conductive material to form a conductive layer 10A on this planarization layer for titanium, aluminium, nickel and stainless steel, wherein the thickness of this conductive layer 10A is less than 3 microns.The curing processing procedure time of this ultraviolet lighting is less than 5 minutes, and the heat that this heat is dried curing process is dried temperature and is less than 30 minutes between 80 ~ 120 DEG C, set time.Otherwise, if this substrate layer 10 is conductive material, directly carry out step 505.In step 505, on this substrate layer 10 or on this conductive layer 10A, carry out the long-pending sputter process in physical vapor Shen and form a metal oxide layer 11, and this metal oxide layer 11 is positioned at the top layer of this electrochromism object.Preferably, this metal oxide layer 11 is tungsten oxide layer 11A.Taking tungsten oxide layer 11A as example, the argon oxygen ratio of the long-pending sputter process in this physical vapor Shen is 1.1 ~ 1.2, electric current is 1 ~ 2 ampere, makes this tungsten oxide layer 11A have a thickness and is less than 500 how rice, a Raman shift and bond structures.In the time that this Raman shift of this tungsten oxide layer 11A is 750 cm-1, this bond structure presents the structure (W+6-O) of sexavalence tungsten and oxygen singly-bound bond, and in the time that this Raman shift is 953 cm-1, this bond structure presents the structure (W+6=O) of the two key bonds of sexavalence tungsten and oxygen and this tungsten oxide layer 11A, and to have visible spectrum be 400～600 color and lusters of rice how.In addition, can separately add a dopant 14 at this tungsten oxide layer 11A, this dopant more comprise nitrogen and silicon at least one of them.Thus, can set the color and luster of this electrochromism object.Be noted that especially this metal oxide layer 11 is the top layer that is positioned at this electrochromism object, this metal oxide layer 11 being formed on this substrate layer 10 is not limited with one deck.In another embodiment, on a substrate layer 10, carry out the long-pending sputter process in physical vapor Shen and on this substrate layer 10, form a metal oxide layer 11(as the first metal oxide layer), wherein this metal oxide layer comprises the structure of metal and oxygen singly-bound bond and metal and the two key bonds of oxygen simultaneously, and has one first color.
Fig. 6 A is the schematic diagram of color-changing device according to an embodiment of the invention, and wherein substrate layer 10 is conductive material.Fig. 6 B is the schematic diagram of color-changing device according to an embodiment of the invention, and wherein substrate layer 10 is non-conductive material.Fig. 7 is the flow chart of steps of the color changing method of the embodiment of the present invention.Please also refer to Fig. 6 A and Fig. 6 B, this color-changing device comprises: a direct supply 21, has the first voltage end 22 and second voltage end 23, the first voltage ends 22 for the conductive layer that is electrically connected an electrochromism object 01(); Pair of electrodes 24, is electrically connected second voltage end 23, is metal, as stainless steel to the material of electrode 24; One cell body 25; An and aqueous solution 26, it is placed in cell body 25, the metal oxide layer 11 of electrochromism object 01 and be to be immersed in aqueous solution 26 to electrode 24, aqueous solution 26 comprises sodium chloride solution or sodium bicarbonate solution, aqueous solution 26 also can comprise electrolytical solution such as containing other kation.
Please also refer to 6A, 6B and 7 figure, Fig. 7 is the embodiment of a kind of method that makes the variable color of electrochromism object of the present invention, this electrochromism object 01 comprises a conductive layer 10A and is formed at the metal oxide layer 11 on this conductive layer 10A, this electrochromism object 01 possesses the first color, this comprises the following steps the method for electrochromism object 01 variable color: in step 701, a cell body 25 that holds an aqueous solution 26 is provided, and wherein this aqueous solution 26 comprises sodium chloride solution or sodium bicarbonate solution.This aqueous solution 26 also can comprise electrolytical solution such as containing other kation, but if need consider about environmental protection and economic problems, sodion solution is still first-selection.
In step 702, make this aqueous solution 26 infiltrate this tungsten oxide layer 11A and the pair of electrodes 24 of this electrochromism object 01.
In step 703, respond a direct supply 21, its first, second voltage end 22,23 is connected to respectively to the conductive layer 10A of this electrochromism object 01 and this to electrode 24, to form an electric field among aqueous solution 19, makes this electrochromism object become the second color by the first color transition.In detail, the electric field that puts on this aqueous solution 26 can make the kation in aqueous solution 26 embed this metal oxide layer 11, or make kation shift out and change the color of electrochromism object 01 from this metal oxide layer 11, form a color texture, wherein this color texture comprise word and pattern at least one of them.In other words, this aqueous solution 26, can be within the scope of visible spectrum under direct supply 21 effects of forward or negative sense, makes the color of electrochromism object 01 or pattern present reversible transformation.In following chemical equation (2), WOx (N, Si) tungsten oxide, Na+ (aq) the represent sodium solion of representative doping nitrogen or silicon, in the time that the first voltage end of direct supply is negative pole, can generate product Nax (WOx (N, the Si)) y of forward after painted; Otherwise, in the time that the first voltage end of direct supply is positive pole, reverse tungsten oxide and the sodion solution that reverts back to doping nitrogen out of the ordinary or silicon.
Electric field
WOx(N,?Si)?+?Na+(aq)
Nax?(WOx?(N,?Si))?y….…(2)
One first state: this voltage signal has one first voltage level in a first period, wherein this first voltage level is between 1.2 ~ 3 volts, and this first period is more than or equal to 30 seconds;
One second state: this voltage signal has the second voltage position standard in a second phase, wherein this second voltage position standard is between 3 ~ 5 volts, and this second phase is less than or equal to 22 seconds;
One third state: the tertiary voltage position standard of this voltage signal in having between a third phase, wherein this tertiary voltage position standard is between 5 ~ 7 volts, and between this third phase between 10 ~ 15 seconds;
One the 4th state: one four voltage level of this voltage signal in having between a fourth phase, wherein the 4th voltage level is between 7 ~ 9 volts, and is less than 10 seconds between this fourth phase.
Generally speaking, external dc power supply 21 intensity are larger, and it is shorter that color changes the required time; Otherwise external dc power supply 21 intensity are less, it is longer that color changes the required time.
Embodiment:
A method of manufacturing electrochromism object, comprises the following steps:
One substrate layer is provided, and it is nontransparent material; And
Form a tungsten oxide layer on this substrate layer, and this tungsten oxide layer is positioned at the top layer of this electrochromism object, wherein this tungsten oxide layer comprises tungsten oxygen singly-bound bond and the two key bond structures of tungsten oxygen simultaneously.
Method as described in Example 1, before forming this tungsten oxide layer, more comprises the following steps:
At this substrate layer one surface-coated macromolecular material, to form a planarization layer on this substrate layer; And
On this planarization layer plating establish comprise titanium, aluminium, nickel and stainless steel at least one of them a conductive material form a conductive layer, wherein this conductive layer thickness is less than 3 microns, this tungsten oxide layer is located on this conductive layer.
Method as described in Example 1, wherein this tungsten oxide layer comprises a dopant, this dopant more comprise nitrogen and silicon at least one of them.
Method as described in Example 1, wherein this tungsten oxide layer has a color texture, and this color texture comprise word and pattern at least one of them.
Method as described in Example 1, wherein the step of this tungsten oxide layer of this formation on this substrate layer comprises:
This substrate layer is carried out to a sputter process and form this tungsten oxide layer, wherein argon oxygen ratio is 1.1 ~ 1.2, electric current is 1 ~ 2 ampere, make this tungsten oxide layer there is a thickness and be less than 500 how rice, a Raman shift and bond structures, and this tungsten oxide layer to present visible spectrum be 400～600 color and lusters of rice how.
A kind of electrochromism object, comprising:
One substrate layer, it is nontransparent material; And
One metal oxide layer, is formed on this substrate layer, and this metal oxide layer is positioned at the top layer of this electrochromism object, and wherein this metal oxide layer comprises the structure of metal and oxygen singly-bound bond and metal and the two key bonds of oxygen simultaneously.
Object as described in Example 6, separately comprises:
One planarization layer is to be formed on this substrate layer one surface with a macromolecular material; And
One conductive layer is to be located on this planarization layer with a conductive material plating;
Wherein, this metal oxide layer is formed on this conductive layer.
Object as described in embodiment 6 or 7, wherein this metal oxide layer comprises a dopant, this dopant more comprise nitrogen and silicon at least one of them.
Object as described in Example 6, the wherein ground of this base material series of strata 3C Product shell part or 3C Product protection valve jacket.
Object as described in Example 6, the wherein ground of this base material series of strata one pieces of ornament accessories.
Make a method for electrochromism object variable color as described in Example 6, the method comprises:
One color-changing device is provided, comprises: a cell body; One contains cationic aqueous solution, and it is placed in this cell body; One direct supply, has the first voltage end and second voltage end; And pair of electrodes, it is electrically connected this first voltage end, and immerses this aqueous solution;
Be electrically connected this electrochromism object to this second voltage end, and make the metal oxide layer of this electrochromism object immerse this aqueous solution; And
This aqueous solution is applied to a voltage, make this electrochromism object become one second color by one first color transition.
Method as described in embodiment 11, in the time applying a voltage to this aqueous solution
, when this first voltage end is positive electrode, when this second voltage end is negative electrode
, the kation of aqueous solution embeds the metal oxide layer of this electrochromism object;
When this first voltage end is negative electrode, when this second voltage end is positive electrode,
Original kation that embeds this metal oxide layer shifts out from this metal oxide layer.
In sum, this case provides a kind of reversible electrochromism shell part and manufacture method thereof, with novel technology thinking, meet the viewpoint of hommization, and verified feasible operator scheme, can make the decorative colouring to variable color shell part rapidly, can remove from present loaded down with trivial details and the variable color process of not environmental protection, for the love user of variable color shell part, is a large Gospel.
This case must be thought and is to modify as all by the personage Ren Shi craftsman who is familiar with this skill, so neither de-as Protector that claim is wanted.
Claims (12)
1. a method of manufacturing electrochromism object, comprises the following steps:
One substrate layer is provided, and it is nontransparent material; And
Form a tungsten oxide layer on this substrate layer, and this tungsten oxide layer is positioned at the top layer of this electrochromism object, wherein this tungsten oxide layer comprises tungsten oxygen singly-bound bond and the two key bond structures of tungsten oxygen simultaneously.
2. the method for claim 1, before forming this tungsten oxide layer, more comprises the following steps:
At this substrate layer one surface-coated macromolecular material, to form a planarization layer on this substrate layer; And
On this planarization layer plating establish comprise titanium, aluminium, nickel and stainless steel at least one of them a conductive material form a conductive layer, wherein this conductive layer thickness is less than 3 microns, this tungsten oxide layer is located on this conductive layer.
3. the method for claim 1, wherein this tungsten oxide layer comprises a dopant, this dopant more comprise nitrogen and silicon at least one of them.
4. the method for claim 1, wherein this tungsten oxide layer has a color texture, and this color texture comprise word and pattern at least one of them.
5. the method for claim 1, wherein the step of this tungsten oxide layer of this formation on this substrate layer comprises:
This substrate layer is carried out to a sputter process and form this tungsten oxide layer, wherein argon oxygen ratio is 1.1 ~ 1.2, electric current is 1 ~ 2 ampere, make this tungsten oxide layer there is a thickness and be less than 500 how rice, a Raman shift and bond structures, and this tungsten oxide layer to present visible spectrum be 400～600 color and lusters of rice how.
6. an electrochromism object, comprising:
One substrate layer, it is nontransparent material; And
One metal oxide layer, is formed on this substrate layer, and this metal oxide layer is positioned at the top layer of this electrochromism object, and wherein this metal oxide layer comprises the structure of metal and oxygen singly-bound bond and metal and the two key bonds of oxygen simultaneously.
7. object as claimed in claim 6, separately comprises:
One planarization layer is to be formed on this substrate layer one surface with a macromolecular material; And
One conductive layer is to be located on this planarization layer with a conductive material plating;
Wherein, this metal oxide layer is formed on this conductive layer.
8. the object as described in claim 6 or 7, wherein this metal oxide layer comprises a dopant, this dopant more comprise nitrogen and silicon at least one of them.
9. object as claimed in claim 6, the wherein ground of this base material series of strata 3C Product shell part or 3C Product protection valve jacket.
10. object as claimed in claim 6, the wherein ground of this base material series of strata one pieces of ornament accessories.
11. 1 kinds make the method for electrochromism object as claimed in claim 6 variable color, and the method comprises:
One color-changing device is provided, comprises: a cell body; One contains cationic aqueous solution, and it is placed in this cell body; One direct supply, has the first voltage end and second voltage end; And pair of electrodes, it is electrically connected this first voltage end, and immerses this aqueous solution;
Be electrically connected this electrochromism object to this second voltage end, and make the metal oxide layer of this electrochromism object immerse this aqueous solution; And
This aqueous solution is applied to a voltage, make this electrochromism object become one second color by one first color transition.
12. methods as claimed in claim 11, in the time that this aqueous solution is applied to a voltage, when this first voltage end is positive electrode, when this second voltage end is negative electrode, the kation of aqueous solution embeds the metal oxide layer of this electrochromism object; When this first voltage end is negative electrode, when this second voltage end is positive electrode, the kation that originally embedded this metal oxide layer shifts out from this metal oxide layer.
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| CN109116652A (en) * | 2018-09-30 | 2019-01-01 | Oppo广东移动通信有限公司 | Electrochromic device and preparation method thereof, electronic equipment |
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