Preparation method of photoassisted sol-gel of yttrium doped zinc oxide transparent conductive film

A technology of transparent conductive film and zinc oxide, which is applied in the field of photosol-gel preparation to achieve the effects of low production cost, improved electrical performance, and simple equipment

Inactive Publication Date: 2011-03-30
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report about the combination of UV irradiation and sol-gel met

Method used

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  • Preparation method of photoassisted sol-gel of yttrium doped zinc oxide transparent conductive film
  • Preparation method of photoassisted sol-gel of yttrium doped zinc oxide transparent conductive film
  • Preparation method of photoassisted sol-gel of yttrium doped zinc oxide transparent conductive film

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[0021] Example 1

[0022] See figure 1 .

[0023] (1) Preparation of sol: Weigh 2.2g zinc acetate into a 50mL conical flask, add 19.4mL ethylene glycol monomethyl ether and 0.6mL ethanolamine, stir and heat in a water bath at 70°C for 1 hour, then transfer to the conical flask Add 0.1149g of yttrium nitrate (doping amount of 3.0%), continue heating and stirring for 2 hours to obtain a transparent and clear sol, which will be used after cooling to room temperature;

[0024] (2) Cleaning of glass substrate: use detergent and 3mol / L H 2 SO 4 Solution, 1mol / L NaOH solution, deionized water, acetone, absolute ethanol ultrasonic cleaning;

[0025] (3) Preparation of the film: the sol obtained in step (1) is applied to the glass substrate cleaned in step (2) by spin coating; then the glass substrate coated with the sol is dried on a heating plate at 80°C After 10 minutes, place it in a muffle furnace at 450°C for 2 minutes to anneal, and repeat the above sol coating, drying and annealing te...

Example Embodiment

[0032] Example 2

[0033] (1) Preparation of sol: Weigh 2.2g zinc acetate into a 50mL conical flask, add 19.4mL ethylene glycol monomethyl ether and 0.6mL ethanolamine, stir and heat in a water bath at 70°C for 1 hour, then transfer to the conical flask Add 0.0192g yttrium nitrate (doping amount 0.5%), continue heating and stirring for 2 hours to obtain a transparent and clear sol, which will be used after cooling to room temperature;

[0034] (2) Cleaning of glass substrate: use detergent and 3mol / L H 2 SO 4 Solution, 1mol / L NaOH solution, deionized water, acetone, absolute ethanol ultrasonic cleaning;

[0035] (3) Preparation of the film: the sol obtained in step (1) is applied to the glass substrate cleaned in step (2) by spin coating; then the glass substrate coated with the sol is dried on a heating plate at 80°C After 10 minutes, place it in a muffle furnace at 450°C for 2 minutes to anneal, and repeat the above sol coating, drying and annealing ten times to obtain a pre-desig...

Example Embodiment

[0042] Example 3

[0043] (1) Preparation of sol: Weigh 2.2g zinc acetate into a 50mL conical flask, add 19.4mL ethylene glycol monomethyl ether and 0.6mL ethanolamine, stir and heat in a water bath at 70°C for 1 hour, then transfer to the conical flask Add 0.1915g of yttrium nitrate (doping amount 5.0%), continue heating and stirring for 2 hours to obtain a transparent and clear sol, which will be used after cooling to room temperature;

[0044] (2) Cleaning of glass substrate: use detergent and 3mol / L H 2 SO 4 Solution, 1mol / L NaOH solution, deionized water, acetone, absolute ethanol ultrasonic cleaning;

[0045] (3) Preparation of the film: the sol obtained in step (1) is applied to the glass substrate cleaned in step (2) by spin coating; then the glass substrate coated with the sol is dried on a heating plate at 80°C After 10 minutes, place it in a muffle furnace at 450°C for 2 minutes to anneal, and repeat the above sol coating, drying and annealing ten times to obtain a pre-de...

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Abstract

The invention belongs to the technical field of material surface chemical coating, in particular relating to a preparation method of a photoassisted sol-gel of a yttrium doped zinc oxide transparent conductive film. In the invention, the sol-gel is prepared by adopting a photoassisted sol-gel method and a hierarchic annealing method, and taking zinc acetic acid and yttrium nitric acid as raw materials, ethylene glycol monoemethyl ether as a solvent, and ethanolamine as a stabilizer; and by regulating the doping amount of the yttrium, controlling the temperature and the time of drying and annealing, and irradiating by ultraviolet, the control on the electricity performance of the yttrium doped zinc oxide transparent conductive film is achieved. In the invention, the prepared yttrium doped zinc oxide transparent conductive film has the resistivity within 2.1*10<-2> omega.cm to 8.1*10<-2> omega.cm, the light transmission ratio (including substrate) of a visible light area is more than 85%; in addition, the film consists of zinc oxide nano-crystals with a hexagonal wurtzite structure, wherein the crystal sizes are even, and the crystals are arranged compactly and have C-axis preferable growth orientation.

Description

technical field [0001] The invention belongs to the technical field of material surface chemical coating, and in particular relates to a preparation method of photosol-gel for preparing yttrium-doped zinc oxide transparent conductive film on a glass substrate. Background technique [0002] Doped zinc oxide film has good light transmittance and excellent conductivity in the visible light band, so it also has the function of transparent conductivity; it can be used in transparent electrodes for various electronic displays, and anti-fog windshields for automobiles and aircraft. It not only has electrical and optical properties comparable to ITO conductive glass, but also has the characteristics of abundant raw material reserves, low cost, non-toxicity, and good thermal stability, making it expected to become the best substitute for ITO conductive glass. The dopant that studies more at present is the fourth main group element, as B, Al, Ga, In, Y.Yamamoto etc. are in literature ...

Claims

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Application Information

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IPC IPC(8): C23C18/12
Inventor 李金培张天宝
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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