Electrodes of solar cell formed by active solder and method therefor

摘要

Electrodes of a solar cell formed by an active solder and a method therefor are provided. The method includes steps of: providing a solar cell substrate; providing an active solder having at least one type of soldering alloy mixed with 6 wt % or less of at least one type of active component and 0.01-2.0 wt % of at least one type of rare earth element (Re); firstly melting the active solder at a temperature lower than 450° C.; then applying the molten active solder on the solar cell substrate (or firstly applying and then melting); and cooling to solidify the active solder, so as to form an electrode pattern.

主权项

1. A method for manufacturing electrodes of a solar cell formed by an active solder, comprising steps of:
providing a solar cell substrate; providing an active solder having a bismuth-based alloy mixed with 4 wt % or less of at least one type of active component which is selected from magnesium (Mg), lithium (Li) and the mixture thereof, and 0.01-2.0 wt % of at least one type of rare earth element; firstly melting the active solder at a temperature lower than 450° C.; then applying the molten active solder on the solar cell substrate; and cooling to solidify the active solder, so as to form an electrode pattern.