Edge-Defined Film-Fed Growth (EFG) (EFG)1 topic · 1 source ScienceEnergyA method for making sheets of polycrystalline silicon (for solar photovoltaic devices) in which molten silicon is drawn upward by capillary action through a mold.US DOE Office of Energy Efficiency & Renewable Energy — Glossary of Energy-Related Terms retrieved 2014-05-26 Cite