Glass is a proven, excellent substrate and cover for photovoltaic applications. But glass can be a source of module
reliability problems if not properly fabricated. Glass reliability issues can include brittle failure due to mechanical and
thermal stresses, surface weathering, lamination adhesion, TCO adhesion, moisture ingress, and anti-reflective coating
durability. A synopsis of typical problems and how to prevent them is provided for both new and current module
Thin film photovoltaic applications typically require a front surface transparent conductive oxide (TCO). The most commercially successful TCO for photovoltaic applications has been fluorine doped tin oxide. Fluorine doped tin oxide is easily processed, mechanically durable, heat resistant, stable, and has controllable morphology. Tin oxide can be deposited during the glass manufacturing process, providing high performance coatings for an excellent value. Recent
developments in this field include conductivity shifting coatings, and multi-textured morphologies.