The Effect of Reaction Parameters on the Structural NaYF4 Microcrystals

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Abstract:

NaYF4 microcrystals were synthesized using a hydrothermal method, and the effects of the EDTA and NaF addition amount on the crystal structure, morphology and size were systematically studied. When the NaF addition amount increase, the size of the NaYF4 microcrystal increase, the excess F- ions promote the formation of β-phase of NaYF4. EDTA significantly modifies the morphology of the crystals. When addition the EDTA the crystals transition from irregular silkworm-like microcrystal to hexagonal microprisms. And the EDTA also promote the hexagonal phase formation.

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Advanced Materials Research (Volumes 1044-1045)

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141-144

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October 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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