Ultrathin Epitaxial Silicon Solar Cells with Inverted Nanopyramid Arrays for Efficient Light Trapping.

  title={Ultrathin Epitaxial Silicon Solar Cells with Inverted Nanopyramid Arrays for Efficient Light Trapping.},
  author={Alexandre Gaucher and Andrea Cattoni and Christophe Dupuis and Wanghua Chen and Romain Cariou and Martin Foldyna and Lo{\"i}c Lalouat and Emmanuel Drouard and Christian Seassal and Pere Roca i Cabarrocas and St{\'e}phane Collin},
  journal={Nano letters},
  volume={16 9},
Ultrathin c-Si solar cells have the potential to drastically reduce costs by saving raw material while maintaining good efficiencies thanks to the excellent quality of monocrystalline silicon. However, efficient light trapping strategies must be implemented to achieve high short-circuit currents. We report on the fabrication of both planar and patterned ultrathin c-Si solar cells on glass using low temperature (T < 275 °C), low-cost, and scalable techniques. Epitaxial c-Si layers are grown by… 

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