Recent progress in amorphous silicon PV technology

Abstract
To reach the 15% stable efficiency goal for a‐Si modules by the year 2005, the National Renewable Energy Laboratory has established four research teams. The teams with members from industry, universities, and NREL have been in operation for nearly one year now. Consensus has been reached that a triple‐junction a‐Si structure is needed to reach the goal. Performance parameter goals for the overall structure and the three subcells have been formulated. Development plans for all four teams have been generated. Individual team progress relative to the plans is reported.
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