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      Facile route to produce spherical and highly luminescent Tb3+doped Y2O3 nanophosphors

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      Author(s)
      Kumar, D.
      Sharma, M.
      Haranath, D.
      Pandey, O. P.
      Date
      2017
      Source Title
      Journal of Alloys and Compounds
      Print ISSN
      0925-8388
      Publisher
      Elsevier
      Volume
      695
      Pages
      726 - 736
      Language
      English
      Type
      Article
      Item Usage Stats
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      130
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      Abstract
      Terbium doped yttrium oxide (Y2O3:Tb3+) nanophosphor has been synthesized via a facial yet modified co-precipitation method. To get maximum luminescence output from Y2O3:Tb3+nanophosphors, surfactants namely, Cetyl trimethylammonium bromide (CTAB) and Trioctylphosphine oxide (TOPO) were added during synthesis. Further, it has been observed that combined addition of surfactant (CTAB�+�TOPO) at the time of synthesis has resulted in nearly spherical morphology of the nanophosphor. Furthermore, these optimized material are observed to have enhanced integrated photoluminescence (PL) intensity of ∼23% as compared to the one synthesized without the addition of any surfactant. The results are further supported by detailed structural and optical studies. Optimum use of surfactants during synthesis shows for the first time that both nano-sized distribution and high crystallinity can be achieved simultaneously which has resulted in bright green emission in Tb3+doped Y2O3nanophosphors.
      Keywords
      Co-precipitation
      Coprecipitation
      Optical materials
      Phosphors
      Precipitation (chemical)
      Surface active agents
      Yttrium oxide
      Cetyltrimethylammonium bromide
      Coprecipitation method
      Green emissions
      High crystallinity
      Optical study
      Photoluminescence intensities
      Spherical morphologies
      Trioctylphosphine oxide
      Luminescence
      Permalink
      http://hdl.handle.net/11693/37370
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.jallcom.2016.06.124
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