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Method for preparing zinc oxide film

A technology of zinc oxide thin film and zinc chloride solution, which is applied in the field of materials, can solve the problems of small film size, complicated equipment and process, and achieve the effect of low cost, simple equipment and synthesis process

Inactive Publication Date: 2010-04-14
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the equipment and process used in the preparation method of zinc oxide thin film are complicated, and the area size of the prepared thin film is small

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Step (1) The zinc chloride crystal that takes 34.08g is put into the beaker of 500ml, measures 500ml ethylene glycol solvent, zinc chloride crystal is dissolved in ethylene glycol solvent, is mixed with zinc chloride concentration and is 0.5mol / L zinc chloride solution;

[0014] Step (2) dissolving 5ml of ethylenediamine liquid in 95ml of ethanol to form an ethylenediamine solution, containing 5% of ethylenediamine in the ethylenediamine solution;

[0015] Step (3) adding the ethylenediamine solution to the zinc chloride solution until the pH value is 6.5 to form a mixed solution;

[0016] Step (4) heat the mixed solution at 60° C. for 10 hours to form a sol;

[0017] Step (5) Coating the sol on the glass by the pulling method, drying at 60° C. for 0.5 hour, to form a gel film;

[0018] In step (6), the gel film on the glass is heated and heat-treated at 500° C. for 30 minutes to form a zinc oxide film.

Embodiment 2

[0020] Step (1) take by weighing the zinc chloride crystal of 3.408g and put it into a 500ml beaker, measure 500ml ethylene glycol solvent, dissolve the zinc chloride crystal in ethylene glycol solvent, and prepare the zinc chloride concentration as 0.05mol / L zinc chloride solution;

[0021] Step (2) dissolving 1ml of ethylenediamine liquid in 99ml of ethanol to form an ethylenediamine solution, containing 1% ethylenediamine in the ethylenediamine solution;

[0022] Step (3) adding the ethylenediamine solution to the zinc chloride solution until the pH value is 5.5 to form a mixed solution;

[0023] Step (4) heat the mixed solution at 20°C for 20 hours to form a sol;

[0024] Step (5) Coating the sol on the glass by the pulling method, drying at 30° C. for 5 hours to form a gel film;

[0025] In step (6), the gel film on the glass is heated and heat-treated at 400° C. for 60 minutes to form a zinc oxide film.

Embodiment 3

[0027] Step (1) The zinc chloride crystal that takes 17.04g is put into the beaker of 500ml, measures 500ml ethylene glycol solvent, zinc chloride crystal is dissolved in ethylene glycol solvent, is mixed with zinc chloride concentration and is 0.25mol / L zinc chloride solution;

[0028] Step (2) dissolving 3ml of ethylenediamine liquid in 97ml of ethanol to form an ethylenediamine solution, containing 3% ethylenediamine in the ethylenediamine solution;

[0029] Step (3) adding the ethylenediamine solution to the zinc chloride solution until the pH value is 6 to form a mixed solution;

[0030] Step (4) heat the mixed solution at 30°C for 15 hours to form a sol;

[0031] Step (5) Coating the sol on the glass by the pulling method, drying at 50° C. for 1 hour to form a gel film;

[0032] In step (6), the gel film on the glass is heated and heat-treated at 450° C. for 45 minutes to form a zinc oxide film.

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PUM

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Abstract

The invention relates to a method for preparing a zinc oxide film. The equipment and a process used by the traditional method are complicated, and a prepared film has small area and size. The method comprises the following steps: firstly, dissolving a zinc oxide crystal into a glycol solvent to prepare a zinc oxide solution and dissolving quadrol liquid into alcohol to prepare a quadrol solution; then adding the quadrol solution into a zinc chloride solution till the pH value is between 5.5 and 6.5 and forming a mixed solution; preserving the temperature of the mixed solution at 20-60 DEG C for 10-20 hours to form sol; coating the sol on glass by a pulling method, drying at 30-60 DEG C for 0.5-5 hours and forming a gel film; heating the gel film on the glass, hot processing at 400-500 DEG C for 30-60 minutes and forming the zinc oxide film. The method can plate the film at large area and have simple used raw material, equipment and synthesizing process and low cost.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to a method for preparing a zinc oxide film, in particular to a method for synthesizing a zinc oxide film by a sol-gel method. Background technique [0002] Zinc oxide, as a transition metal element oxide, has a wide range of applications in the fields of photodetectors, gas sensors and pressure sensors. The equipment and process used in the current preparation method of zinc oxide thin film are complicated, and the area size of the prepared thin film is small. The patent can obtain a large-sized zinc oxide thin film through a new method, and the raw materials, equipment and synthesis process used are simple and the cost is low. Contents of the invention [0003] The purpose of the present invention is to provide a simple method for preparing zinc oxide thin film. [0004] The inventive method comprises the following steps: [0005] Step (1) dissolving zinc chloride crystals in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/27C01G9/02
Inventor 赵士超吕燕飞季振国
Owner HANGZHOU DIANZI UNIV