Add time:09/07/2019         Source:sciencedirect.com

In this study, pure and rare earth ions-doped yttrium hydroxide fluoride (Y(OH)2.02F0.98 denoted as YHF) were fabricated via an ion exchange route employing anion exchangeable lanthanide hydroxyanion as a sacrificial template. And the anion exchange materials Y2(OH)5Cl·1.5H2O (YHCl) are synthesized during the preparation of YHF samples. The structure, morphology, formation process, and luminescence properties were well investigated by using XRD, SEM, and PL spectra. Under ultraviolet light excitation, the YHF:Ln3+ (Ln = Eu, Tb, Dy, Sm) phosphors show strong light emissions with different colors for different doping ions. These features manifest the ion exchange route might open a new avenue in synthetic methodology for luminescent materials.

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