4.7 Article

The novel upconversion properties of LiYbF4:Er microcrystals compared to the Na counterpart

Journal

CRYSTENGCOMM
Volume 14, Issue 24, Pages 8357-8360

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ce26159f

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Funding

  1. Natural Science Foundation of China [61176056, 91123019]
  2. 13115 Innovation Engineering of Shaanxi Province [2010ZDKG-58]
  3. Institute of Photonics and Photo-Technology, Provincial Key Laboratory of Photoelectronic Technology, Northwest University, China

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Erbium-doped ytterbium fluoride compounds with different crystal phases and morphologies have been synthesized via a facile hydrothermal route assisted with EDTA. Tunable upconversion emissions can be obtained by replacing Na+ with Li+ in NaYbF4 microcrystals. An interesting blue shift is observed and a mechanism based on a weakened polarization effect is proposed.

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