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Effects of mechanical strain on the performance of amorphous silicon triple-junction solar cells

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6 Author(s)
Jones, R. ; Dept. of Electr. Eng., Princeton Univ., NJ, USA ; Johnson, T. ; Jordan, W. ; Wagner, S.
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Amorphous silicon triple-junction solar cells were tested in tension and compression. The production cells had the structure: stainless steel (125 μm)/Al/ZnO/n1i1p1n2i2p2n3i3p3/ITO/grid, where i1 and i2 are a-SiGe:H and i3 is a-Si:H. We bent the solar cells to strains as high as 2%. The I-V characteristics of the cells were tested before, during and after bending. We found that there was little deterioration in cell performance under compression up to 1.7% strain, which is the physical limit of our experiment. In tension, some cell characteristics began to degrade at strains of 0.75%. Plastic deformation was observed at strains of 0.2% and higher.

Published in:

Photovoltaic Specialists Conference, 2002. Conference Record of the Twenty-Ninth IEEE

Date of Conference:

19-24 May 2002