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@ARTICLE{Sever:152037,
      author       = {Sever, M. and Lipovsek, B. and Krc, J. and Campa, A. and
                      Plaza, Guillermo Sanchez and Haug, F. J. and Duchamp,
                      Martial and Soppe, W. and Topic, M.},
      title        = {{C}ombined model of non-conformal layer growth for accurate
                      optical simulation of thin-film silicon solar cells},
      journal      = {Solar energy materials $\&$ solar cells},
      volume       = {119},
      issn         = {1879-3398},
      address      = {Amsterdam},
      publisher    = {North Holland},
      reportid     = {FZJ-2014-01857},
      pages        = {59-66},
      year         = {2013},
      abstract     = {In thin-film silicon solar cells textured interfaces are
                      introduced, leading to improved antireflection and light
                      trapping capabilities of the devices. Thin-layers are
                      deposited on surface-textured substrates or superstrates and
                      the texture is translated to internal interfaces. For
                      accurate optical modelling of the thin-film silicon solar
                      cells it is important to define and include the morphology
                      of textured interfaces as realistic as possible. In this
                      paper we present a model of thin-layer growth on textured
                      surfaces which combines two growth principles: conformal and
                      isotropic one. With the model we can predict the morphology
                      of subsequent internal interfaces in thin-film silicon solar
                      cells based on the known morphology of the substrate or
                      superstrate. Calibration of the model for different
                      materials grown under certain conditions is done on various
                      cross-sectional scanning electron microscopy images of
                      realistic devices. Advantages over existing growth modelling
                      approaches are demonstrated—one of them is the ability of
                      the model to predict and omit the textures with high
                      possibility of defective regions formation inside the Si
                      absorber layers. The developed model of layer growth is used
                      in rigorous 3-D optical simulations employing the COMSOL
                      simulator. A sinusoidal texture of the substrate is
                      optimised for the case of a micromorph silicon solar cell.
                      More than a 50 $\%$ increase in short-circuit current
                      density of the bottom cell with respect to the flat case is
                      predicted, considering the defect-free absorber layers. The
                      developed approach enables accurate prediction and powerful
                      design of current-matched top and bottom cell.},
      cin          = {PGI-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {424 - Exploratory materials and phenomena (POF2-424)},
      pid          = {G:(DE-HGF)POF2-424},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000326908000008},
      doi          = {10.1016/j.solmat.2013.05.016},
      url          = {https://juser.fz-juelich.de/record/152037},
}