Get access

High-Efficiency Amorphous Silicon Solar Cell on a Periodic Nanocone Back Reflector

Authors

  • Ching-Mei Hsu,

    1. Department of Materials Science and Engineering, Durand Building, 496 Lomita Mall, Stanford University, Stanford, CA 94305-4034, USA
    Search for more papers by this author
  • Corsin Battaglia,

    Corresponding author
    1. École Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering (IMT), Photovoltaics and Thin Film Electronics Laboratory, Rue Breguet 2, 2000 Neuchâtel, Switzerland
    • École Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering (IMT), Photovoltaics and Thin Film Electronics Laboratory, Rue Breguet 2, 2000 Neuchâtel, Switzerland
    Search for more papers by this author
  • Celine Pahud,

    1. École Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering (IMT), Photovoltaics and Thin Film Electronics Laboratory, Rue Breguet 2, 2000 Neuchâtel, Switzerland
    Search for more papers by this author
  • Zhichao Ruan,

    1. Department of Electrical Engineering, Stanford University, USA
    Search for more papers by this author
  • Franz-Josef Haug,

    1. École Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering (IMT), Photovoltaics and Thin Film Electronics Laboratory, Rue Breguet 2, 2000 Neuchâtel, Switzerland
    Search for more papers by this author
  • Shanhui Fan,

    1. Department of Electrical Engineering, Stanford University, USA
    Search for more papers by this author
  • Christophe Ballif,

    1. École Polytechnique Fédérale de Lausanne (EPFL), Institute of Microengineering (IMT), Photovoltaics and Thin Film Electronics Laboratory, Rue Breguet 2, 2000 Neuchâtel, Switzerland
    Search for more papers by this author
  • Yi Cui

    Corresponding author
    1. Department of Materials Science and Engineering, Durand Building, 496 Lomita Mall, Stanford University, Stanford, CA 94305-4034, USA
    • Department of Materials Science and Engineering, Durand Building, 496 Lomita Mall, Stanford University, Stanford, CA 94305-4034, USA.
    Search for more papers by this author

Abstract

original image

An amorphous silicon solar cell on a periodic nanocone back reflector with a high 9.7% initial conversion efficiency is presented. The optimized back-reflector morphology provides powerful light trapping and enables excellent electrical cell performance. Up-scaling to industrial production of large-area modules should be possible using nanoimprint lithography.

Ancillary