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Ce3+ and Yb3+ co-doped YBO3 phosphors were facilely fabricated by a hydrothermal method. The investigations reveal that hexagonal YBO3: Ce3+, Yb3+ nanoparticles aggregate to form cyclic structure after annealing at 900°C. An efficient near-infrared (NIR) quantum cutting phenomenon involving the emission of two NIR photons (971nm) for each ultraviolet (UV) photon (360nm) absorbed is observed based...
Near-infrared (NIR) quantum cutting (QC) YBO3: Ce3+, Yb3+ phosphors have been synthesized by solvothermal method with further heat treatment. The emission spectrum shows the Vis and NIR emission intensity of samples are both increasingly strong as annealing temperature rises when the annealing temperature is above 600°C. Meanwhile the Vis emission of unannealed sample is observed. SEM images show...
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