Electrochromism assembly provided with composite electrochromism materials

An electrochromic material and electrochromic technology, applied in nonlinear optics, instruments, optics, etc., can solve problems such as affecting the scope of application, not disclosing in detail the composition and process of electrochromic layer materials, and unable to have coloring memory. , to achieve the effect of accelerating transmission speed and rapid color change response

Inactive Publication Date: 2013-06-05
ASIATREE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the electrochromic material of the electrochromic device of this patent is mixed with the electrolyte for conducting ions, so a higher voltage must be continuously applied to maintain the color changing state, so it cannot have color memory effect ) effect
In addition, the patent does not disclose the composition and process of the electrochromic layer material in detail, which also affects the scope of subsequent applications

Method used

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  • Electrochromism assembly provided with composite electrochromism materials
  • Electrochromism assembly provided with composite electrochromism materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052]Firstly, the glass (1.4m x 1.1m) is first treated with a degreasing agent to remove the surface oil, and then washed with water to keep the glass surface clean without leaving any degreasing agent, and then the glass surface is cleaned with hydrochloric acid , and then washed with water to remove excess hydrochloric acid solution, and finally the glass was coated with a 200nm ITO film by sputtering. Next, at O 3 / O 2 Synthesis of molar WO by sol-gel method under mixed gas environment 3 :TiO 2 =96:4 thin film, and deposited on the working electrode glass coated with indium tin oxide (indium tinoxide, ITO). On the other hand, the counter electrode also forms a NiO with a thickness of 300nm on the surface of the ITO glass in the above-mentioned manner; The relative distance between the length and the length and the width and the width of the two transparent conductive substrates is between 0.5 cm. Finally, it is sealed with a sealant containing glass bead spacers along...

Embodiment 2

[0055] Embodiment 2 is as big as the step of embodiment 1, and its main difference is: the WO formed on the ITO glass surface 3 The thickness of the working electrode and the NiO of the counter electrode are changed to 400 nanometers; the metal doping material is changed to Pt, and Pt:WO 3 The molar ratio is 5:95; and the solid electrolyte is changed to a colloidal electrolyte. Colloidal electrolyte is an electrolyte mixed with ionic liquid and colloidal polymer. Wherein the ionic liquid is 1M LiClO of lithium salt 4 , and mixed with [EMIM][BF 4 ] ionic liquid (wherein EMIM is ethylmethyl imidazolium ion [ethylmethyl imidazolium]); and the colloidal polymer is ethylene-vinyl acetate copolymer (Ethylenevinyl accetate copolymer, EVA). Among them, the ionic conductivity of the formed colloidal polymer electrolyte is about 10 at room temperature -3 S / cm. The finished electrochromic device develops a dark blue color with a transmittance of about 20%; when quenched, the electro...

Embodiment 3

[0057] Embodiment 3 is as large as the steps of embodiment 2, and its main difference is: the metal doping material is changed to Pt: WO 3 The molar ratio is 3:97. The prepared electrochromic device develops a dark blue color with a transmittance of about 24%; when quenched, the electrochromic device is transparent with a transmittance of 70%. As described in Example 1, the electrochromic device provides an excellent memory effect over 75 hours. It is worth noting that the driving voltage of the electrochromic device is 2.7 volts, which can produce the electrochromic effect, and the dimming time can be less than 1 second.

[0058] In summary, an electrochromic component with a composite electrochromic material of the present invention has the following effects:

[0059] The electrochromic layer of the electrochromic component of the present invention is doped with a metal doping material, which accelerates the transmission speed of electrons, resulting in a rapid electrochro...

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Abstract

The invention discloses an electrochromism assembly provided with composite electrochromism materials. The electrochromism assembly mainly comprises a first transparent substrate, a first transparent conducting layer, an electrochromism layer, a second transparent substrate, a second transparent conducting layer, an auxiliary electrochromism layer, and electrolyte. The electrochromism assembly quickens electronic transmission speed through mixing of metal doping materials, and further achieves the function of quick metachromatism.

Description

technical field [0001] The invention relates to an electrochromic component, in particular to an electrochromic component with a composite electrochromic material, which accelerates the transmission speed of electrons by doping with a metal doping material, and further achieves a fast color changing reaction. effect. Background technique [0002] The advancement of science and technology brings a comfortable and convenient living environment to human beings, but at the same time it also causes ecological damage and energy depletion, causing its price to continue to rise. In addition to seeking alternative energy, making good use of and saving energy is an important issue today. Materials Selection and product development are the key to achieve this goal. In recent years, energy-saving products have been developed and released, among which electrochromic glass is the most eye-catching. [0003] Electrochromism is an emerging technology developed in the past decade. Using th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/153
Inventor 李炳寰
Owner ASIATREE TECH
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