Synthesis and luminescence properties of rare-earth doped NaLaF4 nanoparticles

Bowen Ma; Jinping Li; Chengyun Zhang; Zhenglong Zhang; Zhengkun Fu; Hairong Zheng

doi:10.1117/12.2538898

19 November 2019 Synthesis and luminescence properties of rare-earth doped NaLaF₄ nanoparticles

Bowen Ma, Jinping Li, Chengyun Zhang, Zhenglong Zhang, Zhengkun Fu, Hairong Zheng

Proceedings Volume 11194, Plasmonics IV; 111940J (2019) https://doi.org/10.1117/12.2538898
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

Rare-earth doped NaLaF₄ nanocrystals were synthesized by solvothermal method in ethanol/oleic acid/water reaction system. The structure and porphology of samples were characterized by X-ray diffraction(XRD), scanning electron microscopy (SEM) and transmission electron microscopy(TEM). By adjusting the amount of NaOH in the precursor, we obtained NaLaF₄:Er³⁺/Yb³⁺/Gd³⁺nanocrystals with a rich variety of morphologies, including nanoprisms, nano-dumbbells, nanorods and nanowires. A possible mechanism of formation of the NaLaF4 nanocrystals was proposed based on the time dependent experiments. The upconversion luminescence properties of rare-earth doped NaLaF₄ nanocrystals with different morphology was discussed. The experimental results demonstrated that the NaLaF₄:Er³⁺/Yb³⁺/Gd₃₊ nanocrystals with different morphologies exhibited similar up-conversion luminescence, with sharp emission peaks near 540 nm and 650 nm, and red color stronger than green light.

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Bowen Ma, Jinping Li, Chengyun Zhang, Zhenglong Zhang, Zhengkun Fu, and Hairong Zheng "Synthesis and luminescence properties of rare-earth doped NaLaF₄ nanoparticles", Proc. SPIE 11194, Plasmonics IV, 111940J (19 November 2019); https://doi.org/10.1117/12.2538898

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KEYWORDS

Nanocrystals

Luminescence

Erbium

Gadolinium

Nanoparticles

Upconversion

Ytterbium

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