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Issue 5, 2016
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Morphology-controlled hydrothermal synthesis and multifunctional luminescence properties of micro-crystals Gd6O5F8:Eu3+/Tb3+/Tm3+

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Abstract

This paper reports on a facile hydrothermal route that has been developed to synthesize a precursor Gd(OH)2.14F0.86 and a novel phosphor host Gd6O5F8. The morphology of the micro-sized Gd(OH)2.14F0.86/Gd6O5F8 can be easily tuned in a controlled manner by altering the fluorine sources, alkali solutions, reaction time and the pH values of the initial solution. Under ultraviolet (UV) light, vacuum ultraviolet (VUV) light and low-voltage electron beam excitation, the Gd(OH)2.14F0.86/Gd6O5F8:Ln3+ (Eu, Tb and Tm) samples show the characteristic f–f transitions of the Ln3+ ions and give bright red, green and blue emissions, respectively. The results prove that the as-synthesized Gd6O5F8 are excellent host lattices for rare earth luminescence, which may find potential applications in solid-state light, field emission displays (FEDs).

Graphical abstract: Morphology-controlled hydrothermal synthesis and multifunctional luminescence properties of micro-crystals Gd6O5F8:Eu3+/Tb3+/Tm3+

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Publication details

The article was received on 31 Oct 2015, accepted on 21 Dec 2015 and first published on 21 Dec 2015


Article type: Paper
DOI: 10.1039/C5CE02129D
CrystEngComm, 2016,18, 728-735

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    Morphology-controlled hydrothermal synthesis and multifunctional luminescence properties of micro-crystals Gd6O5F8:Eu3+/Tb3+/Tm3+

    S. Du, D. Wang and Y. Wang, CrystEngComm, 2016, 18, 728
    DOI: 10.1039/C5CE02129D

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