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X-ray luminescence properties of LiLa1-xNdxP4O12 nanocrystals: Concentration and size effects

Abstract : X-ray luminescence properties of LiLa1−xNdxP4O12 nanocrystals were investigated for the first time. The influence of the Nd3+ concentration on the integral emission intensities in visible and near infrared emission region were investigated. It was found that emission from 2F(2)5/2 is strongly affected by cross-relaxation process and its intensity decreases exponentially with Nd3+ amount, while emission from 4F7/2 + 4S3/2, 4F5/2 + 2H11/2, and 4F3/2 states rises up sublinearly with Nd3+ concentration. The size effect on emission spectra under X-ray excitation was presented.
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https://hal-univ-lyon1.archives-ouvertes.fr/hal-02307272
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Submitted on : Monday, October 7, 2019 - 2:28:14 PM
Last modification on : Thursday, April 2, 2020 - 10:48:06 AM

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L. Marciniak, R. Tomala, Yannick Guyot, Federico Moretti, D. Hreniak, et al.. X-ray luminescence properties of LiLa1-xNdxP4O12 nanocrystals: Concentration and size effects. Optical Materials, Elsevier, 2015, 50, pp.134-137. ⟨10.1016/j.optmat.2015.10.012⟩. ⟨hal-02307272⟩

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