Preparation method of inflorescence type WO3 thin film for electrochromism

An electrochromic and flower-cluster technology, applied in liquid chemical plating, metal material coating process, coating, etc., can solve the problems of complex film preparation methods, and achieve environmental protection, low energy loss, and overall cost low effect

Active Publication Date: 2017-02-15
TIANJIN CHENGJIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a kind of flower cluster WO for electrochromic 3 Thin film preparation method solves WO 3 The complex problem of thin film preparation method makes WO 3 The preparation process of thin film is simple and easy to control

Method used

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  • Preparation method of inflorescence type WO3 thin film for electrochromism
  • Preparation method of inflorescence type WO3 thin film for electrochromism

Examples

Experimental program
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Effect test

Embodiment 1

[0025] First, 1.2 g of Na 2 WO 4 2H 2 O was dissolved in distilled water, and the volume was adjusted to 100ml to prepare 0.036mol L -1 Na 2 WO 4 Aqueous solution, to 100ml Na 2 WO 4 Add 0.2g NaCl to the aqueous solution, stir until transparent, add 1mol·L -1 hydrochloric acid to adjust the pH value to 3; then add 0.02g CTAB as a surfactant, after stirring for a period of time to obtain WO 3 precursor solution. WO 3 The precursor solution was transferred to a hydrothermal kettle with a polytetrafluoroethylene liner, and the cleaned FTO conductive glass was placed in the solution, covered and sealed, heated to 180°C in an oven for 24 hours, and then cleaned with absolute ethanol , distilled water and then washed and dried. WO 3 The film was annealed at 550°C in a muffle furnace to obtain flower-like WO 3 film.

[0026] The flower cluster WO obtained by the present invention 3 Thin film, scanning electron microscope observation test results such as figure 1 As sho...

Embodiment 2

[0028] First, prepare 0.03mol·L -1 Na 2 WO 4 100ml of aqueous solution, add 0.1g NaCl and stir until transparent, add 1mol·L -1 hydrochloric acid to adjust the pH value to 3; then add 0.01gCTAB as a surfactant, after stirring for a period of time to obtain WO 3 precursor solution. WO 3 The precursor solution was transferred to a hydrothermal kettle with a polytetrafluoroethylene liner, and the cleaned FTO conductive glass was placed in the solution, covered and sealed, heated to 180°C in an oven for 24 hours, and then cleaned with absolute ethanol , distilled water and then washed and dried. WO 3 The film was annealed at 550°C in a muffle furnace to obtain flower-like WO 3 film.

Embodiment 3

[0030] First, prepare 0.04mol·L -1 Na 2 WO 4 100ml of aqueous solution, add 0.2g NaCl and stir until transparent, add 1mol·L -1 Hydrochloric acid to adjust the pH value to 3; then add 0.015gCTAB as a surfactant, after stirring for a period of time to obtain WO 3 precursor solution. WO 3 The precursor solution was transferred to a hydrothermal kettle with a polytetrafluoroethylene liner, and the cleaned FTO conductive glass was placed in the solution, covered and sealed, heated to 180°C in an oven for 24 hours, and then cleaned with absolute ethanol , distilled water and then washed and dried. WO 3 The film was annealed at 550°C in a muffle furnace to obtain flower-like WO 3 film.

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Abstract

The invention aims to provide a preparation method of an inflorescence type WO3 thin film for electrochromism, and solves the problem that a preparation method of a WO3 thin film is complicated, so that the preparation technology of the WO3 thin film is simple and easy to control. The preparation method of the inflorescence type WO3 thin film for the electrochromism provided by the invention comprises the following steps of firstly preparing a WO3 precursor solution; then preparing WO3 on FTO conducting glass through using a hydrothermal method; and performing washing and drying, and putting the WO3 thin film in a muffle furnace for annealing, so as to obtain the inflorescence type WO3 film.

Description

technical field [0001] The invention belongs to the technical field of material preparation, in particular to a flower cluster WO for electrochromic 3 The method of film preparation. Background technique [0002] In the new century, along with the development and progress of cities, more and more high-rise buildings have also brought a lot of energy waste and light pollution problems. In order to solve this problem, the idea of ​​an electrochromic window structure has been proposed. Electrochromism means that under the action of alternating high and low or positive and negative external electric fields, the material injects or extracts charges (ions or electrons), thereby producing a reversible state between a low-transmittance colored state and a high-transmittance achromatic state. The special phenomenon of change, in terms of appearance performance, is manifested as reversible changes in color and transparency, so as to achieve the purpose of adjusting light absorption ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/12
CPCC23C18/1216C23C18/1295
Inventor 刘志华张晶
Owner TIANJIN CHENGJIAN UNIV
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