Mullite-Based Substrates for Polycrystalline Silicon Thin-Film Solar Cells.

Abstract

The use of polycrystalline silicon thin-film on inexpensive ceramic substrates for solar cells is one of the most promising approaches to realize both their high performance and cost reduction. Mullite-based ceramics prepared from kaolin-alumina are appropriate for cost-effective substrates for the polycrystalline silicon thin-film solar cells. They fulfill requirements such as thermal and mechanical stability up to 1200°C and no thermal expansion mismatch with silicon.