Applied Physics A

, 125:11 | Cite as

Color-tunable and upconversion luminescence of Gd2O2S:Er,Tm phosphor: experimental investigations and first-principles calculation

  • Peipei Liu
  • Fei WangEmail author
  • Bin Yang
  • Xiumin Chen


The Er3+, Tm3+ co-doped gadolinium oxysulfide phosphors were prepared using solid-state reaction in vacuum. The crystal structure, morphology, and photoluminescence characteristics were, respectively, investigated by X-ray diffraction, transmission electron microscope, upconversion luminescence spectra and Commission Internationale de L’Eclairage diagram. Under 980 nm excitation, the quenching concentration of Er3+ was revealed to be 7 mol% with highest luminescence intensity and fluorescence lifetime. The emitting color of Gd2O2S:Er,Tm phosphors can be tuned by adjusting the concentration of Er3+ and Tm3+. First-principles calculation was employed to clarify the luminescence mechanism of the impurities doped in gadolinium oxysulfide host lattice by calculated band structure, density of states and absorption spectrum.



The work is financially supported by National Natural Science Foundation of China (NSFC) under Grant No. 51504120 and NSFC-FWO exchange project (Grant No. 5171101430).


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© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.National Engineering Laboratory for Vacuum MetallurgyKunming University of Science and TechnologyKunmingPeople’s Republic of China
  2. 2.State Key Laboratory of Complex Nonferrous Metal Resources Clear Utilization, Key Laboratory of Vacuum Metallurgy of Non-ferrous Metals of Yunnan ProvinceKunming University of Science and TechnologyKunmingPeople’s Republic of China

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