Author(s)

Zang Guofeng ¹, Yuan Ningning ¹, Li Zhen ¹

Affiliation(s)

¹ Guangzhou Institute of Technology, Guangzhou, Guangdong, China

Corresponding Author

Zang Guofeng

ABSTRACT

Upconversion luminescence GdF₃: Er³⁺, Yb³⁺ phosphors were prepared under different reaction conditions by a hydrothermal method. X-ray diffraction (XRD), field emission scanning electron microscope (SEM) and upconversion (UC) emission spectra were used to characterize the samples. The results of XRD indicate that the formation of cubic phase GdF₃ depends on the hydrothermal reaction time and reaction temperature. The results of SEM show that morphology of the sample changes with changing different reaction temperatures. The results of the upconversion emission spectra show: under 980nm infrared excitation, that green emission is from ²H_11/2→⁴I_15/2 and ⁴S_3/2→⁴I_15/2 transitions of Er³⁺ ions and red emission comes from ⁴F_9/2→⁴I_15/2 transitions of Er³⁺ ions. A: Red emission intensity is significantly stronger than the green emission intensity, B: Green emission intensity is significantly stronger than the red emission intensity for two samples.

KEYWORDS

GdF3:Er3+; Yb3+; hydrothermal method; upconversion Luminescence

CITE THIS PAPER

Zang Guofeng, Yuan Ningning, Li Zhen, Preparation and Luminescence Properties of Rare Earth Doped Upconversion Phosphors. Journal of Materials, Processing and Design (2023) Vol. 7: 6-12. DOI: http://dx.doi.org/10.23977/jmpd.2023.070102.

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