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Method of forming niobium doped tin oxide coatings on glass and coated glass formed thereby

A coating and coating technology, applied in the direction of coating, etc.

Inactive Publication Date: 2003-05-21
PILKINGTON NORTH AMERICA INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in fact, the general surface resistance of tin oxide coating is about 350-400 ohms / square

Method used

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Examples

Experimental program
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Effect test

Embodiment 1-5

[0036] The first set of samples was produced conventionally and only doped with niobium. In this sample, dimethyltin dichloride was used as the tin source, while water and oxygen were also added. NbCl 5 Pass through a bubbler and suspend in helium carrier gas. Additional inert gas (He) was added in order to obtain the desired total flow rate. The surface resistance of the resulting coating was measured with a four-point probe. The thickness of the resulting coating was determined by color analysis. In addition, surface finish measurement techniques may also have been used to determine coating thickness.

[0037] Sample 1 included a DMT flow rate of 0.6 standard liters per minute. Take 10.3 standard cm 3 Add water at a rate of 1 / min. Oxygen was added at a rate of 18 Nl / min. Sample 1 is the baseline test sample without niobium pentachloride. The surface resistance of sample 1 is about 350-500 ohms / square, and the calculated thickness is about 3800 angstroms. The surfac...

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PUM

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Abstract

A niobium doped tin oxide coating is applied onto a glass substrate to produce a low emissivity (low E) glass. The coating can optionally be doped with both niobium and other dopant (s), such as fluorine. The low emissivity glass has properties comparable or superior to conventional low E glass with fluoring doped tin oxide coatings.

Description

Background of the invention [0001] The present invention relates to a film suitable for use as a coating for glass substrates. More particularly, the present invention relates to the application of niobium-doped tin oxide coatings to glass substrates to produce low emissivity (low E) glasses. [0002] Coatings on glass are often used to provide specific energy attenuation and light transmission properties. Additionally, when multiple coatings are applied to a glass substrate, the coatings are designed to reduce interfacial reflections between the single coating and the glass. Coated products are usually used alone or in combination with other coated products to form a glazing effect. [0003] The properties of the resulting coated glass substrate depend on the particular coating applied to the glass substrate. Coating composition and thickness affect the energy absorption and light transmission characteristics within the coated article, as well as the spectral characteristi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/245
CPCC03C2217/218C03C2218/152C03C2217/211C03C2218/15C03C2217/241C03C2217/24C03C17/2453
Inventor S·瓦拉纳斯D·A·斯特里克莱尔K·D·桑德尔森
Owner PILKINGTON NORTH AMERICA INC
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