Oxide crystal, its preparation method and conductive paint containing oxide crystal

Abstract

The present application discloses a novel oxide crystal, a preparation method of the oxide crystal, a conductive paint containing the oxide crystal, and an object including a substrate and the conductive paint applied to the substrate. The present application can solve the problem that the content of glass powder is too small to provide proper pulling force and reduce the reliability and durability of solar cells. It can also solve the problem that too much glass powder will hinder the firing of the conductive paint, so that the electrodes cannot form proper ohmic contact. During the conductive paint firing process, lead-tellurium-bismuth-oxide crystals are heated to liquid form, acting alone or in combination with softened glass powder, to provide proper corrosion and penetrate the anti-reflection layer on the front side of the solar cell , so that a good ohmic contact is formed between the conductive metal and the substrate, so that the fired conductive paint forms a solar cell electrode with appropriate physical properties and excellent conductivity.

Description

technical field [0001] The present application belongs to the field of oxide crystals, and in particular, relates to a novel oxide crystal, a preparation method of the oxide crystal, a conductive coating containing the oxide crystal, and an object including a substrate and the conductive coating applied to the aforementioned substrate. Background technique [0002] Conductive paints for solar cells generally contain conductive metals or their derivatives such as silver particles, glass powders such as glass containing lead oxide, and organic vehicles. Glass powders typically used for conductive paints are amorphous. [0003] Glass powder is used as an inorganic binder phase in conductive coatings. If the content of glass powder is too small, the electrode structure formed after firing will not be dense enough, and the physical properties will be reduced, so that it will not be able to provide proper pulling force, which will make the reliability of solar cells and Reduced du...

AI Technical Summary

Problems solved by technology

[0003] Glass powder is used as an inorganic binder phase in conductive coatings. If the content of glass powder is too small, the electrode structure formed after firing will not be dense enough, and the physical properties will be reduced, so that it will not be able to provide proper pulling force, which will make the reliability of solar cells and Reduced durability

On the other hand, if the content of glass powder is too high, the content of conductive metal will be relatively reduced. Too much glass powder will hinder the firing of conductive paint, so that the electrode cannot form a proper ohmic contact, or it will be excessively corroded and invade the solar cell. Substrate, resulting in lower conversion efficiency and electrical characteristics of solar cells

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