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@ARTICLE{Chornodolskyy:624397,
      author       = {Chornodolskyy, Ya. and Demkiv, Taras and Demchenko, P. and
                      Kurlyak, V. and Kotlov, A. and Gloskovskii, A. and Salapak,
                      V. and Gektin, A. and Voloshinovskii, A.},
      title        = {{Q}uenching mechanisms of {C}e{F}$_3$ luminescence},
      journal      = {Journal of luminescence},
      volume       = {280},
      issn         = {0022-2313},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {PUBDB-2025-00866},
      pages        = {121120},
      year         = {2025},
      note         = {Waiting for fulltext},
      abstract     = {The luminescent properties of CeF₃ single crystals and
                      nanoparticles have been investigated. The single crystals
                      exhibit intense luminescence associated with the emission of
                      5d-4f Frenkel excitons at 283 and 305 nm (4.38 and 4.07 eV),
                      as well as “perturbed” cerium ions with a maximum at
                      approximately 340 nm (3.64 eV). The transition from a single
                      crystal to nanoparticles results in a significant reduction
                      in exciton luminescence intensity, giving way to
                      defect-related luminescence. The excitation spectrum maxima
                      of exciton luminescence in nanoparticles with size of a = 26
                      nm correlate with the dips in the excitation spectrum of the
                      single crystals and the maxima of cerium ion luminescence
                      excitation in LaF₃-Ce, due to the absence of light
                      absorption saturation effects in the thin layer of the
                      nanoparticle. The reduction of the exciton luminescence
                      decay time constant from 16.1 for single crystals to 1.7 ns
                      for nanoparticles with size of 12 nm indicates the
                      predominance of non-radiative decay mechanisms associated
                      with surface defects. The quenching rate of exciton
                      luminescence is higher than that of “perturbed” centers
                      luminescence, which is due to an additional channel of
                      exciton luminescence quenching through the diffusion of
                      excitons to surface defects. The quenching rate of exciton
                      luminescence exceeds that of “perturbed” center
                      luminescence due to exciton diffusion to surface defects. In
                      nanoparticles with a = 8 nm, exciton luminescence is absent,
                      however, the defect luminescence excitation spectrum still
                      suggests exciton formation. The absence of delay in the rise
                      time of the defect luminescence pulse for nanoparticles with
                      a = 8 nm confirms the radiative nature of the interaction
                      between excitons and “perturbed” cerium centers.},
      cin          = {DOOR ; HAS-User / FS-PET-S},
      ddc          = {530},
      cid          = {I:(DE-H253)HAS-User-20120731 /
                      I:(DE-H253)FS-PET-S-20190712},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      EURIZON - European network for developing new horizons for
                      RIs (871072)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
                      G:(EU-Grant)871072},
      experiment   = {EXP:(DE-H253)P-P66-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001426538800001},
      doi          = {10.1016/j.jlumin.2025.121120},
      url          = {https://bib-pubdb1.desy.de/record/624397},
}