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Zinc-titanium-oxygen composite film material with electrochromic effect, its application and preparation method

A composite film and electrochromic technology, applied in the fields of electrochromic materials and metal-oxygen composite materials, to achieve the effects of low cost, simple process and good cycle life

Active Publication Date: 2020-11-24
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there has been no relevant report on the application of zinc-titanium-oxygen composite materials in the technical field of electrochromic materials.

Method used

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  • Zinc-titanium-oxygen composite film material with electrochromic effect, its application and preparation method
  • Zinc-titanium-oxygen composite film material with electrochromic effect, its application and preparation method
  • Zinc-titanium-oxygen composite film material with electrochromic effect, its application and preparation method

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Embodiment 1

[0034] In this embodiment, a method for preparing a zinc-titanium-oxygen composite thin film material with an electrochromic effect according to the present invention is prepared by a sol-gel process, and the specific steps are as follows:

[0035] a. Substrate pretreatment:

[0036] First, pretreat the FTO conductive glass substrate, then ultrasonically clean the FTO conductive glass substrate with deionized water, acetone, absolute ethanol, and deionized water in sequence, and dry it to obtain a clean and dry substrate, which is ready for use;

[0037] b. Preparation of zinc-titanium-oxygen composite film precursor colloid:

[0038] According to the molar ratio of titanium dioxide and zinc oxide in the preparation of zinc-titanium oxide sol is 1:1, tetra-n-butyl titanate and zinc acetate are used as the raw materials for the preparation of the precursor solution, and diethanolamine and absolute ethanol are used as the raw materials respectively. Stabilizer and solvent, usin...

Embodiment 2

[0060] This embodiment is basically the same as Embodiment 1, especially in that:

[0061] In this embodiment, a method for preparing a zinc-titanium-oxygen composite thin film material with an electrochromic effect according to the present invention is prepared by a sol-gel process, and the specific steps are as follows:

[0062] a. This step is the same as in Embodiment 1;

[0063] b. Preparation of zinc-titanium-oxygen composite film precursor colloid:

[0064] According to the molar ratio of titanium dioxide and zinc oxide in the preparation of zinc-titanium oxide sol is 1:1, tetra-n-butyl titanate and zinc acetate are used as the raw materials for the preparation of the precursor solution, and diethanolamine and absolute ethanol are used as the raw materials respectively. Stabilizer and solvent, using F127 three-block block polymer ( SIGMA) as a surfactant, weighed 0.2049g of F127 three-stage block polymer with an analytical balance and placed it in a round-bottomed fla...

Embodiment 3

[0071] This embodiment is basically the same as the previous embodiment, and the special features are:

[0072] In this embodiment, a method for preparing a zinc-titanium-oxygen composite thin film material with an electrochromic effect according to the present invention is prepared by a sol-gel process, and the specific steps are as follows:

[0073] a. This step is the same as in Embodiment 1;

[0074] b. This step is the same as in Embodiment 1;

[0075] c. Zinc-titanium oxide composite oxide film coating:

[0076] Using the SC-1B desktop glue homogenizer, take the zinc-titanium oxide sol prepared in the step b, spin coating at a speed of 1000 rpm for 5 seconds, and spin coating at a speed of 4000 rpm for 25 seconds, Coating the zinc-titanium oxide sol on the FTO conductive glass substrate pretreated by the step a, forming a zinc-titanium oxide sol film through a sol coating process, as a zinc-titanium oxide composite oxide film precursor;

[0077] d. Heat treatment of z...

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Abstract

The invention discloses a zinc-titanyl composite thin film material with an electrochromic effect, and application and a manufacturing method thereof. The zinc-titanyl composite thin film material haselectrochromism phenomenon in a potassium chloride electrolyte. A sol-gel method is used, molar ratio of titanium dioxide to zinc oxide is controlled to be 1:1 to prepare a sol precursor, and a F127three-stage telcomer is added in the precursor, and through sol coating and thin film heat treatment steps, a transparent zinc-titanyl composite thin film is prepared on an FTO conductive glass substrate. The thin film has electrochromism phenomenon, and a large ionic electrolyte can be used. A colored state of the zinc-titanyl composite thin film in the potassium chloride electrolyte is dusty blue, a color fading state is transparent, coloring / fading contrast reaches 37%, and cycle life is good. The zinc-titanyl composite thin film material has advantages of simple process, low cost, and stable electrochromic performance of the film material, and the like, and can be applied to the fields of aerospace, automobile industry, information technology, building materials and the like.

Description

technical field [0001] The invention relates to an electrochromic material, its application and preparation method, in particular to a metal-oxygen composite material with electrochromic effect, its application and preparation method, and is applied in the technical field of electrochemical functional materials. Background technique [0002] Electrochromism refers to the redox reaction of some materials through the injection or extraction of electrons and ions under the action of an electric field, forming a color center in the material or producing a colored compound, which is reversible in color and transparency in appearance. Variety. [0003] The research on electrochromic materials can be traced back to T.Kraus in 1951 on WO 3 Research. Until Deb discovered amorphous WO in 1969 3 Thin films have electrochromic effects, and the famous Deb model has been proposed, so the research on electrochromic materials has attracted extensive attention. The advent of electrochrom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1523C09K9/00
CPCC09K9/00G02F1/15
Inventor 俞圣雯石基赵加栋张聪宇
Owner SHANGHAI UNIV
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