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Abstract
Yin Min, Krupa J. C.. Upconversion Luminescence in Nd3+: LaCl3[J]. Chinese Journal of Chemical Physics , 2001, 14(1): 40-46. DOI: 10.1088/1674-0068/14/1/40-46
Citation: Yin Min, Krupa J. C.. Upconversion Luminescence in Nd3+: LaCl3[J]. Chinese Journal of Chemical Physics , 2001, 14(1): 40-46. DOI: 10.1088/1674-0068/14/1/40-46
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Upconversion Luminescence in Nd3+: LaCl3

  • 1.

    Department ofPhysics, University of Science and Technology of China, Hefei 230026)

  • 2.

    Institute ofNuclear Physics, 91406Orsay Cedex, France

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  • Received Date: February 14, 2000
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    • Abstract
  • Blue and near violet upconversion luminescence originating from4D3/2and2G9/2levels in Nd3+:LaCl3can be induced upon excitation into2G7/2+4G5/2in the yellow region. Upconversion occurs via an energy transfer mechanism with or without excited-state absorption. Analysis of the upconversion tran-sient of4D3/2→4I11/2radiative transition at 12K leads to a rate constantwt1=1468 s-1for the energy transfer step. The lifetimes of the main fluorescence levels of Nd3+: LaCl3and NdCl3in the visible range were measured and the values are compared and discussed.
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