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Issue 16, 2015
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Shape controllable synthesis and multicolour fluorescence of lanthanide doped Vernier yttrium oxyfluoride

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Abstract

A series of Tb3+ and Eu3+ activated orthorhombic yttrium oxyfluoride, Y7O6F9 (denoted as V-YOF hereafter) phosphors were synthesized through a facile two-step hydrothermal synthesis route followed by heat treatment for the first time. The phase, morphologies, sizes and photoluminescence properties of as-prepared samples were investigated by means of XRD, SEM, and luminescence spectroscopy. A series of characteristic emission originated from the f–f transitions of Eu3+ and Tb3+ can be observed and multicolour emissions from green to yellow and then to red have been achieved in the V-YOF:Tb3+,Eu3+ samples under 378 nm irradiation. The energy transfer process from Tb3+ to Eu3+ was studied and demonstrated to be a quadrupole–quadrupole interaction mechanism. These results show that the V-YOF phosphors have potential applications in field-emission displays.

Graphical abstract: Shape controllable synthesis and multicolour fluorescence of lanthanide doped Vernier yttrium oxyfluoride

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Supplementary files

Article information


Submitted
07 Feb 2015
Accepted
03 Mar 2015
First published
04 Mar 2015

J. Mater. Chem. C, 2015,3, 3928-3934
Article type
Paper

Shape controllable synthesis and multicolour fluorescence of lanthanide doped Vernier yttrium oxyfluoride

R. Li, Y. Liu, N. Zhang, L. Li, L. Liu, Y. Liang and S. Gan, J. Mater. Chem. C, 2015, 3, 3928
DOI: 10.1039/C5TC00371G

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