Solar cell metallizations containing metal additive

摘要

Paste compositions, methods of making a paste composition, and methods of making a solar cell contact are disclosed. The paste composition can contain silver, a glass frit, a metal additive and an organic vehicle system. The metal additive is at least one selected from the group consisting of yttrium, an organo-vanadium compound, organo-antimony compound, organo-phosphorus compound, and an organo-yttrium compound. The paste can be used for making a solar cell contact.

主权项

1. A method of making a solar cell contact, comprising;
applying a paste to a silicon substrate, the paste comprising:
silver particles at about 50 wt % or more and about 92 wt % or less of the paste composition;a glass frit portion at about 1 wt % or more and about 15 wt % or less of the paste composition; anda metal additive selected from the group consisting of vanadyl acetylacetonates present in an amount effective to reduce a resistance of the solar cell contact, wherein the amount of the metal additive is about 0.01 wt % to about 5 wt % of the paste; and heating the paste to sinter the silver particles and fuse the glass frit.