SILICON PLATE, METHOD FOR PRODUCING SILICON PLATE AND SOLAR CELL

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive and high-performance silicon plate. SOLUTION: The polycrystalline silicon plate has grain boundary lines on its surface, wherein at least one of the grain boundary lines is formed in linear form. A solar cell is produced by using the silicon plate. The silicon plate is produced by using a substrate with projections and depressions such as point projections or line projections that can control the grain boundary lines.