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@ARTICLE{Hoffmann:808777,
      author       = {Hoffmann, Andre and Bittkau, Karsten and Zhang, C. and
                      Meier, Matthias and Carius, R. and Rau, U.},
      title        = {{P}hoton {T}unneling in {T}andem {S}olar {C}ells {W}ith
                      {I}ntermediate {R}eflector},
      journal      = {IEEE journal of photovoltaics},
      volume       = {6},
      number       = {3},
      issn         = {2156-3381},
      address      = {New York, NY},
      publisher    = {IEEE},
      reportid     = {FZJ-2016-02394},
      pages        = {597 - 603},
      year         = {2016},
      abstract     = {We investigate the influence of surface texture on the
                      effectiveness of reflectance by intermediate reflectors in
                      thin-film tandem solar cells. Two distinct angular
                      reflection regimes are identified. For large surfaces with
                      large aspect ratios, frustrated total internal reflection or
                      photon tunneling is found to be the dominating mechanism. We
                      show that the parasitic reflection losses of commonly used
                      randomly textured surfaces are explained by these distinct
                      regimes and introduce a spectral reflectance parameter,
                      which serves as a guideline for designing optimized
                      spectrally selective intermediate reflectors.},
      cin          = {IEK-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-5-20101013},
      pnm          = {121 - Solar cells of the next generation (POF3-121) / HITEC
                      - Helmholtz Interdisciplinary Doctoral Training in Energy
                      and Climate Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-121 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000375717100001},
      doi          = {10.1109/JPHOTOV.2016.2532468},
      url          = {https://juser.fz-juelich.de/record/808777},
}