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Synthesis and up-conversion photoluminescent properties of uniform monodisperse YbPO4: Ln3+ (Ln3+ = Er3+, Tm3+, Ho3+) hollow microspheres

Abstract

Uniform monodisperse YbPO4 hollow microspheres have been successfully synthesized via the combination of a facile homogeneous precipitation approach, an ion-exchange process, and a calcination process for the first time. The crystal structure, morphology, and luminescence properties of the as-obtained samples have been characterized by X-Ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and up-conversion (UC) luminescence spectra. It is noted that the polystyrene (PS) microspheres essentially determine the shape and structure of the final products. Furthermore, The UC luminescence properties as well as the emission mechanisms of the YbPO4:Ln3+ (Ln3+ = Er3+, Tm3+, Ho3+) hollow microspheres were systematically investigated, which show green (Er3+, 4S3/2, 2H11/2 → 4I15/2), blue (Tm3+, 1G4 → 3H6) and red (Ho3+, 5F5 → 5I8) luminescence under 980 nm NIR excitation, which provide potential applications in bioanalysis, optoelectronic and nanoscale devices, future color displays and light-emitting devices, and so on.

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Publication details

The article was received on 21 Jun 2017, accepted on 13 Jul 2017 and first published on 13 Jul 2017


Article type: Paper
DOI: 10.1039/C7NJ02192E
Citation: New J. Chem., 2017, Accepted Manuscript
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    Synthesis and up-conversion photoluminescent properties of uniform monodisperse YbPO4: Ln3+ (Ln3+ = Er3+, Tm3+, Ho3+) hollow microspheres

    Z. Xu, Y. Bi, H. Yu, J. Lin, F. Ding, Y. Sun and Y. Gao, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ02192E

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