Freeform surface invisibility cloaking of interconnection lines in thin-film photovoltaic modules

  title={Freeform surface invisibility cloaking of interconnection lines in thin-film photovoltaic modules},
  author={Malte Langenhorst and Martin Schumann and Stefan Paetel and Raphael Schmager and Uli Lemmer and Bryce Sydney Richards and Martin Wegener and Ulrich Wilhelm Paetzold},
  journal={Solar Energy Materials and Solar Cells},
Abstract The vast majority of conventional photovoltaic (PV) module technologies suffer from inactive areas, for example, due to the front contact finger grids or interconnection lines, which are essential for efficient extraction of the photocurrent. Invisibility cloaking by freeform surfaces is a new concept to guide incident light of the entire solar spectrum and all angles of incidence away from these inactive areas to the active areas of the PV modules. In this work, a freeform surface… 
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