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@ARTICLE{Schnohr:288084,
      author       = {Schnohr, Claudia},
      title        = {{C}ompound semiconductor alloys: {F}rom atomic-scale
                      structure to bandgap bowing},
      journal      = {Applied physics reviews},
      volume       = {2},
      number       = {3},
      issn         = {1931-9401},
      address      = {New York, NY},
      publisher    = {AIP},
      reportid     = {PUBDB-2015-04796},
      pages        = {031304},
      year         = {2015},
      note         = {(c) AIP Publishing LLC},
      abstract     = {Compound semiconductor alloys such as In$_{x}$Ga$_{1-x}$As,
                      GaAsxP$_{1-x}$, or CuIn$_{x}$Ga$_{1-x}$Se$_{2}$ are
                      increasingly employed in numerous electronic,
                      optoelectronic, and photonic devices due to the possibility
                      of tuning their properties over a wide parameter range
                      simply by adjusting the alloy composition. Interestingly,
                      the material properties are also determined by the
                      atomic-scale structure of the alloys on the subnanometer
                      scale. These local atomic arrangements exhibit a striking
                      deviation from the average crystallographic structure
                      featuring different element-specific bond lengths,
                      pronounced bond angle relaxation and severe atomic
                      displacements. The latter, in particular, have a strong
                      influence on the band gap energy and give rise to a
                      significant contribution to the experimentally observed band
                      gap bowing. This article therefore reviews experimental and
                      theoretical studies of the atomic-scale structure of III-V
                      and II-VI zincblende alloys and I-III-VI$_{2}$ chalcopyrite
                      alloys and explains the characteristic findings in terms of
                      bond length and bond angle relaxation. Different approaches
                      to describe and predict the band gap bowing are presented
                      and the correlation with local structural parameters is
                      discussed in detail. The article further highlights both
                      similarities and differences between the cubic zincblende
                      alloys and the more complex chalcopyrite alloys and
                      demonstrates that similar effects can also be expected for
                      other tetrahedrally coordinated semiconductors of the
                      adamantine structural family.},
      cin          = {DOOR},
      ddc          = {530},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {899 - ohne Topic (POF3-899) / FS-Proposal: I-20110135
                      (I-20110135) / FS-Proposal: I-20100027 (I-20100027)},
      pid          = {G:(DE-HGF)POF3-899 / G:(DE-H253)I-20110135 /
                      G:(DE-H253)I-20100027},
      experiment   = {EXP:(DE-H253)D-C-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000362564300006},
      doi          = {10.1063/1.4930002},
      url          = {https://bib-pubdb1.desy.de/record/288084},
}