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@ARTICLE{Reitz:420142,
      author       = {Reitz, Christian and Smarsly, Bernd and Brezesinski,
                      Torsten},
      title        = {{G}eneral {S}ynthesis of {O}rdered {M}esoporous
                      {R}are-{E}arth {O}rthovanadate {T}hin {F}ilms and {T}heir
                      {U}se as {P}hotocatalysts and {P}hosphors for {L}ighting
                      {A}pplications},
      journal      = {ACS applied nano materials},
      volume       = {2},
      number       = {2},
      issn         = {2574-0970},
      address      = {Washington, DC},
      publisher    = {ACS Publications},
      reportid     = {PUBDB-2019-01329},
      pages        = {1063 - 1071},
      year         = {2019},
      note         = {© American Chemical Society},
      abstract     = {The block copolymer templating sol–gel synthesis of a
                      novel class of ternary oxide nanomaterials is reported.
                      NdVO$_4$, EuVO$_4$, GdVO$_4$, DyVO$_4$, YVO$_4$, and
                      TmVO$_4$ have been prepared as open mesoporous films by the
                      dip-coating method using hydrated rare-earth nitrate salt
                      precursors along with vanadium oxytrichloride. All materials
                      crystallize in the tetragonal ZrSiO$_4$-type structure with
                      space group I4$_1$/amd. Short-term treatment at 550 °C is
                      found sufficient to initiate crystallization.
                      Characterization via X-ray and electron diffraction, Raman
                      and X-ray photoelectron spectroscopy, and time-of-flight
                      secondary ion mass spectrometry confirms the single-phase
                      nature and uniformity of the different orthovanadates with
                      tailorable crystallite sizes. The integrated results from
                      electron and atomic force microscopy, Kr physisorption, and
                      in situ and ex situ synchrotron-based small-angle X-ray
                      scattering reveal that the porosity persists throughout the
                      thickness of films, and the mesoscopic ordering is retained
                      even after heating in air at 700 °C. Photobleaching
                      experiments indicate that the sol–gel derived materials,
                      showing an indirect band gap transition at 3.8 ± 0.1 eV,
                      exhibit good photocatalytic properties—the activity is
                      highly superior to that of bulk films of the same nominal
                      composition. Moreover, when doping GdVO$_4$, YVO$_4$, and
                      solid solution GdVO$_4$–YVO$_4$ with trivalent rare-earth
                      ions such as Eu$^{3+}$, Dy$^{3+}$, Er$^{3+}$, or Tm$^{3+}$
                      ions, the films hold promise as phosphors for lighting
                      applications, which might pave the way toward development of
                      (3-dimensional) intricate nanocomposites with unprecedented
                      functionalities.},
      cin          = {DOOR},
      ddc          = {540},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {899 - ohne Topic (POF3-899)},
      pid          = {G:(DE-HGF)POF3-899},
      experiment   = {EXP:(DE-H253)D-BW4-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000469409900049},
      doi          = {10.1021/acsanm.8b02327},
      url          = {https://bib-pubdb1.desy.de/record/420142},
}