Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22689
Title: Sub-10 nm lanthanide doped BaLuF5 nanocrystals : shape controllable synthesis, tunable multicolor emission and enhanced near-infrared upconversion luminescence
Authors: Rao, L
Lu, W
Wang, H
Yi, Z
Zeng, S
Li, Z
Keywords: Fluorides
Luminescence
Optical properties
Issue Date: 2015
Publisher: Pergamon Press
Source: Materials research bulletin, 2015, v. 64, p. 27-32 How to cite?
Journal: Materials research bulletin 
Abstract: In this study, sub-10 nm BaLuF5 nanocrystals with cubic phase structure were synthesized by a solvothermal method using oleic acid as the stabilizing agent. The as-prepared BaLuF5 nanocrystals were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and analyzed by the upconversion (UC) spectra. The TEM results reveal that these samples present high uniformity. Compared with Gd-free samples, the size of BaLuF5:Yb/Er doped with 10% Gd3+ decreased to 5.6 nm. In addition, BaLuF5:Yb/Tm/Gd upconversion nanoparticles (UCNPs) presented efficient near-infrared (NIR)-NIR UC luminescence. Therefore, it is expected that these ultra-small BaLuF5 nanocrystals with well-controlled shape, size, and UC emission have potential applications in biomedical imaging fields.
URI: http://hdl.handle.net/10397/22689
ISSN: 0025-5408
DOI: 10.1016/j.materresbull.2014.12.033
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