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@ARTICLE{Zhang:811834,
      author       = {Zhang, Chao and Merdzhanova, Tsvetelina and Meier, Matthias
                      and Sommer, Nicolas and Astakhov, Oleksandr},
      title        = {{I}mpact of transparent conductive oxide front side texture
                      on the open-circuit voltage of a-{S}i:{H} solar cells},
      journal      = {Physica status solidi / A},
      volume       = {213},
      number       = {7},
      issn         = {1862-6300},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2016-04179},
      pages        = {1942 - 1948},
      year         = {2016},
      abstract     = {High efficiency thin-film silicon solar cells require
                      texturing of the front contacts for advanced light
                      management. However, optically favorable textures may be
                      challenging in terms of the electrical performance. Solar
                      cells deposited on very rough front contacts show a reduced
                      open-circuit voltage, Voc, as compared to flat TCOs. This
                      contribution focuses on the impact of rough surfaces on the
                      Voc in a-Si:H solar cells deposited on six different
                      textured front TCOs. With various i-layer thicknesses from
                      100 to 400 nm the origin of the Voc loss is investigated.
                      Based on our results we propose that the reduction of Voc in
                      a-Si:H solar cells are mainly due to defective regions in
                      the bulk material induced by very rough textures. It is also
                      seen that enlarging the i-layer thickness can improve the
                      Voc of solar cells when grown on very rough textures. By
                      using variable illumination intensity measurements the
                      existence of shunts could be evidenced.},
      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:000385222900044},
      doi          = {10.1002/pssa.201532961},
      url          = {https://juser.fz-juelich.de/record/811834},
}