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@ARTICLE{Wilken:276456,
      author       = {Wilken, Karen and Paetzold, Ulrich W. and Meier, Matthias
                      and Smeets, Michael and Prager, Nicole and Fahland, Matthias
                      and Finger, Friedhelm and Smirnov, Vladimir},
      title        = {{L}ight {M}anagement in {F}lexible {T}hin-{F}ilm {S}olar
                      {C}ells—{T}he {R}ole of {N}anoimprinted {T}extures and
                      {T}ilted {S}urfaces},
      journal      = {IEEE journal of photovoltaics},
      volume       = {5},
      number       = {6},
      issn         = {2156-3381},
      address      = {New York, NY},
      publisher    = {IEEE},
      reportid     = {FZJ-2015-06895},
      pages        = {1646 - 1653},
      year         = {2015},
      abstract     = {We present the application of ultraviolet (UV) nanoimprint
                      lithography for the replication of advanced light management
                      schemes in flexible thin-film solar cells. The approach is
                      maintained entirely at low temperatures, which are required
                      for the development of flexible solar cells on low-cost
                      transparent polymer films. Light-scattering properties are
                      significantly improved by this technique, and thin-film
                      silicon solar cells prepared on these substrates show a
                      substantial improvement in performance due to the
                      nanoimprinted texture. We further investigate the effect of
                      various incident angles of the light on the short-circuit
                      current density (Jsc) of the solar cell and evaluate the
                      corresponding performance of a flexible solar cell in a bent
                      state. Our results show that in the case of imprinted
                      texture, the Jsc and efficiency is reduced within $5\%$ in a
                      bent case of a semicircle when a reduction of the effective
                      illumination area with angle is not taken into account.
                      Overall, the solar cell on imprint-textured polyethylene
                      terephthalate (PET) film shows an increased Jsc for the
                      entire range of incident angles and bent states compared
                      with the nonimprinted PET substrate.},
      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:000364098400021},
      doi          = {10.1109/JPHOTOV.2015.2470672},
      url          = {https://juser.fz-juelich.de/record/276456},
}