Silicon substrate for solar battery, manufacturing apparatus thereof, manufacturing method thereof, and solar battery

摘要

The present invention provides a silicon substrate (10) for a solar battery, wherein said silicon substrate (10) comprises: a plurality of curves (13) constituted by concave parts (11) and convex parts (12) to absorb solar light; and planes (14) connected to both edges of the curves to absorb solar light and to be connected to other silicon substrates. Each of the curves (13) and each of the planes (14) have a thickness of 100 to 300 μm, and each of the concave parts (11) or each of the convex parts (12) has a semi-circular shape. The curves (13) occupy 90% or more of the total area.