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@ARTICLE{RaminMoayed:454637,
      author       = {Ramin Moayed, Mohammad Mehdi and Li, Fu and Beck, Philip
                      and Schober, Jan-Christian and Klinke, Christian},
      title        = {{A}nisotropic circular photogalvanic effect in colloidal
                      tin sulfide nanosheets},
      journal      = {Nanoscale},
      volume       = {12},
      number       = {11},
      issn         = {2040-3372},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {PUBDB-2021-00639},
      pages        = {6256 - 6262},
      year         = {2020},
      abstract     = {Tin sulfide promises very interesting properties such as a
                      high optical absorption coefficient and a small band gap,
                      while being less toxic compared to other metal
                      chalcogenides. However, the limitations in growing
                      atomically thin structures of tin sulfide hinder the
                      experimental exploration of these properties. Due to the
                      flexibility of the colloidal synthesis, it is possible to
                      synthesize very thin and at the same time large nanosheets.
                      Electrical transport measurements show that these nanosheets
                      can function as field-effect transistors with an on/off
                      ratio of more than 105 at low temperatures and p-type
                      behavior. The temperature dependency of the charge transport
                      reveals that defects in the crystal are responsible for the
                      formation of holes as majority carriers. During illumination
                      with circularly polarized light, these crystals generate a
                      helicity dependent photocurrent at zero-volt bias, since
                      their symmetry is broken by asymmetric interfaces (substrate
                      and vacuum). Further, the observed circular photogalvanic
                      effect shows a pronounced in-plane anisotropy, with a higher
                      photocurrent along the armchair direction, originating from
                      the higher absorption coefficient in this direction. Our new
                      insights show the potential of tin sulfide for new
                      functionalities in electronics and optoelectronics, for
                      instance as polarization sensors.},
      cin          = {FS-PS / FS-NL / FS-SMP},
      ddc          = {600},
      cid          = {I:(DE-H253)FS-PS-20131107 / I:(DE-H253)FS-NL-20120731 /
                      I:(DE-H253)FS-SMP-20171124},
      pnm          = {6214 - Nanoscience and Materials for Information Technology
                      (POF3-621)},
      pid          = {G:(DE-HGF)POF3-6214},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:32159562},
      UT           = {WOS:000522124800006},
      doi          = {10.1039/D0NR01189D},
      url          = {https://bib-pubdb1.desy.de/record/454637},
}