Application of Vacancy Injection Gettering to Improve Efficiency of Solar Cells Produced by Millinet Solar. Cooperative Research and Development.

摘要

NREL used vacancy injection gettering (VIG) to evaluate a new two-step gettering process for improving performance of multicrystalline silicon solar cells. Solar cells, after various fabrication steps, were provided by Millinet. The VIG was performed in NREL's optical cavity and the cells were sent back to Millinet solar for a screen-printed front/side contact mask, followed by a second firing at NREL. Detailed analyses showed that VIG was successful. The full advantage of VIG requires some changes in the fabrication schedule of the cells.