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@ARTICLE{Donie:844963,
      author       = {Donie, Yidenekachew J. and Smeets, Michael and Egel, Amos
                      and Lentz, Florian and Preinfalk, Jan B. and Mertens, Adrian
                      and Smirnov, Vladimir and Lemmer, Uli and Bittkau, Karsten
                      and Gomard, Guillaume},
      title        = {{L}ight trapping in thin film silicon solar cells via phase
                      separated disordered nanopillars},
      journal      = {Nanoscale},
      volume       = {10},
      number       = {14},
      issn         = {2040-3372},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {FZJ-2018-02298},
      pages        = {6651 - 6659},
      year         = {2018},
      abstract     = {In this work, we have improved the absorption properties of
                      thin film solar cells by introducing light trapping
                      reflectors deposited onto self-assembled nanostructures. The
                      latter consist of a disordered array of nanopillars and are
                      fabricated by polymer blend lithography. Their broadband
                      light scattering properties are exploited to enhance the
                      photocurrent density of thin film devices, here based on
                      hydrogenated amorphous silicon active layers. We demonstrate
                      that these light scattering nanopillars yield a
                      short-circuit current density increase of $+33\%rel$ with
                      respect to equivalent solar cells processed on a planar
                      reflector. Moreover, we experimentally show that they
                      outperform randomly textured substrates that are commonly
                      used for achieving efficient light trapping. Complementary
                      optical simulations are conducted on an accurate 3D model to
                      analyze the superior light harvesting properties of the
                      nanopillar array and to derive general design rules. Our
                      approach allows one to easily tune the morphology of the
                      self-assembled nanostructures, is up-scalable and operated
                      at room temperature, and is applicable to other photovoltaic
                      technologies.},
      cin          = {IEK-5},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-5-20101013},
      pnm          = {121 - Solar cells of the next generation (POF3-121)},
      pid          = {G:(DE-HGF)POF3-121},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:29582026},
      UT           = {WOS:000429530400045},
      doi          = {10.1039/C8NR00455B},
      url          = {https://juser.fz-juelich.de/record/844963},
}