Low-Cost Substrates for Polycrystalline-Silicon Solar Cells by Electrodeposition Processes. Final Report

摘要

The objectives of this progrm were to identify and develop economical electrolytic methods for depositing thin film polycrystalline silicon suitable for photovoltaic applications, and to fabricate solar cell structures utilizing this unique material. Free-standing and supported polycrystalline silicon sheet has been electroplated from molten salt electrolytes onto a variety of substrates. The deposited silicon has been utilized in the fabrication of photovoltaic devices. Technically and economically, the electrolytic approach for depositing photovoltaic grade thin film polycrystalline silicon is very promising. Additional experimentation is necessary to improve device performance by decreasing electrically active impurities in the deposited silicon. (ERA citation 08:038689)