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@PHDTHESIS{Repmann:37404,
      author       = {Repmann, Tobias},
      title        = {{S}tapelsolarzellen aus amorphem und mikrokristallinem
                      {S}ilizium},
      volume       = {4082},
      issn         = {0944-2952},
      school       = {Techn. Hochsch. Aachen},
      type         = {Dr. (FH)},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {PreJuSER-37404, Juel-4082},
      series       = {Berichte des Forschungszentrums Jülich},
      pages        = {VI, 156 p.},
      year         = {2003},
      note         = {Record converted from VDB: 12.11.2012; Aachen, Techn.
                      Hochsch., Diss., 2003},
      abstract     = {This work adresses the development of silicon thin film
                      solar modules based on amorphous (a-Si:H) and
                      microcrystalline silicon $\mu$c-Si :H) on 30x30 cm$^{2}$
                      substrate size using plasma enhanced chemical vapor
                      deposition (PECVD). Commercially available SnO$_{2}$-coated
                      glass or textured ZnO-coated glas prepared inhouse at the
                      IPV by magnetron sputtering and post deposition wet chemical
                      etching served as substrate. We applied 13.56 MHz plasma
                      excitation frequency for the deposition of all silicon
                      films. The reconstructions of the PECVD reactor and the
                      development of an adapted electrode were required to provide
                      homogeneous deposition in a regime of high deposition
                      pressures and plasma powern. The intrinsic $\mu$c-Si:H films
                      were prepared at deposition rates of 0.5-1 nm/s and showed
                      excellent material quality. This was proven by $\mu$c-Si:H
                      p-i-n cells yielding efficiencies up to 9.4 \%. A-Si:H p-i-n
                      cells were prepared using different types of a-Si:H i-layers
                      to select the best suited for a-Si:H/$\mu$c-Si:H tandem
                      cells. Finally, such tandem cells were realised yielding up
                      to 11.2 \% stabilised cell efficiency (cell size 1
                      cm$^{2}$). The current matching behaviour was studied
                      experimentally by a variation of top and bottom cell i-layer
                      thicknesses. A further understanding was obtained by
                      simulating 1-V curves in the initial and stabilised state.
                      First a-Si:H/$\mu$c-Si:H solar modules on 30x30 cm$^{2}$
                      substrate size were realised on SnO$_{2}$-substrates in
                      close co-operation wich RWE SCHOTT Solar GmbH and lacer
                      using texture-etched ZnO:Al-coated glass substrates. The
                      latter showed initial efficiencies of 10.7 \% and 9.7 \% on
                      aperture areas of 64 cm$^{2}$ and 689 cm$^{2}$,
                      respectively.},
      cin          = {IPV},
      cid          = {I:(DE-Juel1)VDB46},
      pnm          = {Photovoltaik},
      pid          = {G:(DE-Juel1)FUEK247},
      typ          = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
      url          = {https://juser.fz-juelich.de/record/37404},
}