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@ARTICLE{Wirths:139334,
      author       = {Wirths, S. and Ikonic, Z. and Tiedemann, Andreas and
                      Holländer, B. and Stoica, T. and Mussler, G. and Breuer, U.
                      and Hartmann, J. M. and Benedetti, A. and Chiussi, S. and
                      Grützmacher, D. and Mantl, S. and Buca, D.},
      title        = {{T}ensely strained {G}e{S}n alloys as optical gain media},
      journal      = {Applied physics letters},
      volume       = {103},
      number       = {19},
      issn         = {0003-6951},
      address      = {Melville, NY},
      publisher    = {American Institute of Physics},
      reportid     = {FZJ-2013-05331},
      pages        = {192110 -},
      year         = {2013},
      abstract     = {This letter presents the epitaxial growth and
                      characterization of a heterostructure for an electrically
                      injected laser, based on a strained GeSn active well. The
                      elastic strain within the GeSn well can be tuned from
                      compressive to tensile by high quality large Sn content
                      (Si)GeSn buffers. The optimum combination of tensile strain
                      and Sn alloying softens the requirements upon indirect to
                      direct bandgap transition. We theoretically discuss the
                      strain-doping relation for maximum net gain in the GeSn
                      active layer. Employing tensile strain of $0.5\%$ enables
                      reasonable high optical gain values for Ge 0.94Sn0.06 and
                      even without any n-type doping for Ge 0.92Sn0.08.},
      cin          = {PGI-9 / ZEA-3},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-9-20110106 / I:(DE-Juel1)ZEA-3-20090406},
      pnm          = {421 - Frontiers of charge based Electronics (POF2-421)},
      pid          = {G:(DE-HGF)POF2-421},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000327817000040},
      doi          = {10.1063/1.4829360},
      url          = {https://juser.fz-juelich.de/record/139334},
}