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Preparation method of porous ITO conducting glass

A technology of conductive glass and conductive film, applied in the direction of coating, etc., can solve the problems of danger, small corrosion controllability, pore size and uneven distribution, etc., and achieve the effect of good light transmission and uniform pore distribution

Inactive Publication Date: 2019-04-19
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The representative method of post-corrosion pore-forming method is concentrated acid corrosion method. This method mainly uses high-concentration and strong corrosive acid, which has certain dangers. Moreover, the corrosion controllability is small, and the size and distribution of the obtained pores are different. uneven

Method used

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  • Preparation method of porous ITO conducting glass
  • Preparation method of porous ITO conducting glass
  • Preparation method of porous ITO conducting glass

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The average distribution density of pores is about 138 pores / μm 2 , the main pore diameter is 20~50nm ( image 3 ), with a transparency of 89% at 488nm ( Figure 7 ), the surface resistance is the preparation method of the porous ITO conductive glass of 13.4Ω, and concrete operation is as follows:

[0034] Step 1, add 200mg of commercial zinc powder into 10mL of absolute ethanol under stirring, and obtain a zinc powder ethanol suspension with a zinc powder concentration of 20mg / mL after ultrasonication for 5 minutes; dilute concentrated hydrochloric acid to a concentration of 0.08mol / L hydrochloric acid solution, then added in an equal volume of absolute ethanol under stirring to obtain a hydrochloric acid-ethanol mixed solution with a hydrochloric acid concentration of 0.04mol / L (in this mixed solution, the mixing volume ratio of ethanol and hydrochloric acid solution is 1) ;

[0035] Step 2, clean the ITO conductive glass with detergent, dry it at 50°C, and dilute ...

Embodiment 2

[0039] The average distribution density of pores is about 103 pores / μm 2 , with an average pore size of 72nm ( Figure 4 ), with a transparency of 93% at 488nm ( Figure 7 ), the surface resistance is the preparation method of the porous ITO conductive glass of 18.5 Ω, and concrete operations are as follows:

[0040] Step 1, add 400mg of commercial zinc powder into 10mL of absolute ethanol under stirring, and obtain a zinc powder ethanol suspension with a zinc powder concentration of 40mg / mL after ultrasonication for 5 minutes; dilute concentrated hydrochloric acid to a concentration of 0.08mol / L hydrochloric acid solution, then added in an equal volume of absolute ethanol under stirring to obtain a hydrochloric acid-ethanol mixed solution with a hydrochloric acid concentration of 0.04mol / L (in this mixed solution, the mixing volume ratio of ethanol and hydrochloric acid solution is 1) ;

[0041] Step 2, clean the ITO conductive glass with detergent, dry it at 50°C, and dil...

Embodiment 3

[0044] The average distribution density of pores is 86 pores / μm 2 , with an average pore diameter of 95nm ( Figure 5 ), with a transparency of 89% at 488nm ( Figure 7 ), the surface resistance is the preparation method of the porous ITO conductive glass of 27.8 Ω, and concrete operation is as follows:

[0045] Step 1, add 600mg of commercial zinc powder into 10mL of absolute ethanol under stirring, and obtain a zinc powder ethanol suspension with a zinc powder concentration of 60mg / mL after ultrasonication for 5 minutes; dilute concentrated hydrochloric acid to a concentration of 0.08mol / L hydrochloric acid solution, then added in an equal volume of absolute ethanol under stirring to obtain a hydrochloric acid-ethanol mixed solution with a hydrochloric acid concentration of 0.04mol / L (in this mixed solution, the mixing volume ratio of ethanol and hydrochloric acid solution is 1) ;

[0046] Step 2, clean the ITO conductive glass with detergent, dry it at 50°C, and dilute the...

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Abstract

The invention discloses a preparation method of porous ITO conducting glass. The preparation method includes the steps that firstly, zinc dust ethyl alcohol suspension liquid is uniformly arranged onan ITO conducting membrane of the conducting glass through spin coating, and then the conducting glass is soaked into acid-ethyl alcohol mixed liquor to conduct a reducing and corroding reaction on the ITO conducting membrane, so that the porous ITO conducting glass is obtained, The porous ITO conducting glass prepared through the preparation method is provided with uniformly-distributed pores, and the pore density, the pore diameter and the sheet resistance are adjustable within a large range. In addition, the prepared porous ITO conducting glass has good light transmittance, and the light transmittance of the 488 nm position of the porous ITO conducting glass can reach 93%.

Description

technical field [0001] The invention relates to a preparation method of porous ITO conductive glass. Background technique [0002] Porous ITO conductive glass is widely used in displays, sensors and solar cells due to its advantages of good conductivity, light transmission and large surface area. The main preparation methods of existing porous ITO conductive glass can be divided into three categories: particle accumulation to form pores, template to form pores, and corrosion to form pores. The methods for particle accumulation to form holes mainly include magnetron sputtering, molecular beam epitaxy, pulsed laser ablation, chemical vapor deposition, inkjet printing, and spin coating. The holes prepared by these methods are basically composed of Nanoparticles are densely packed, not only interpenetrating, but also mostly in the range of tens of nanometers. The representative method of template pore creation is the sol-gel method. In this method, an organic molecular templat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/23
CPCC03C17/23C03C2217/231C03C2218/33
Inventor 章建辉施泽宇方成黄啸宇
Owner NANJING UNIV
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