SILICON PLATE, METHOD FOR PRODUCING SILICON PLATE, AND SOLAR CELL

摘要

A polycrystalline silicon plate in which at least one of the crystal grain boundary lines on the silicon plate surface is a linear crystal grain boundary line 1, and a solar cell comprising the silicon plate are disclosed. The silicon plate is produced by using an irregular surface substrate having point projections or linear projections capable of controlling the crystal boundary lines. Thus, an inexpensive high-performance silicon plate having such a feature can be produced. An inexpensive high-performance solar cell can be produced by using such a silicon plate.