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@ARTICLE{Shira:187358,
      author       = {Shira, Roza and Kovacs, Andras and Dan Corell, Dennis and
                      Gritti, Claudia and Thorseth, Anders and Dam-Hansen, Carsten
                      and Petersen, Paul Michael and Kardynal, Beata},
      title        = {{O}rigin of low quantum efficiency of photoluminescence of
                      {I}n{P}/{Z}n{S} nanocrystals},
      journal      = {Journal of luminescence},
      volume       = {145},
      issn         = {0022-2313},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2015-01029},
      pages        = {936-939},
      year         = {2014},
      abstract     = {In this paper, we study the origin of a strong wavelength
                      dependence of the quantum efficiency of InP/ZnS
                      nanocrystals. We find that while the average size of the
                      nanocrystals increased by $50\%,$ resulting in longer
                      emission wavelength, the quantum efficiency drops more than
                      one order of magnitude compared to the quantum efficiency of
                      the small nanocrystals. By correlating this result with the
                      time-resolved photoluminescence we find that the reduced
                      photoluminescence efficiency is caused by a fast growing
                      fraction of non-emissive nanocrystals while the quality of
                      the nanocrystals that emit light is similar for all samples.
                      Transmission electron microscopy reveals the polycrystalline
                      nature of many of the large nanocrystals, pointing to the
                      grain boundaries as one possible site for the
                      photoluminescence quenching defects.},
      cin          = {PGI-5 / JARA-FIT},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-5-20110106 / $I:(DE-82)080009_20140620$},
      pnm          = {42G - Peter Grünberg-Centre (PG-C) (POF2-42G41)},
      pid          = {G:(DE-HGF)POF2-42G41},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000330821200152},
      doi          = {10.1016/j.jlumin.2013.09.013},
      url          = {https://juser.fz-juelich.de/record/187358},
}