Abstract
A reddish-orange phosphor, Ca3WO6:Sm3+, was synthesized by the convenient solid-state reaction method and characterized by X-ray diffraction (XRD). Photoluminescence properties and concentration quenching of Ca3WO6:Sm3+ phosphor have been discussed in the excitation and emission spectra. Ca3WO6:Sm3+ phosphor is able to generate a strong excitation peak, which matches the emission wavelength from near-UV LEDs. Energy transfer from Sm3+ to Eu3+ in Ca3WO6 host is observed and investigated in detail. The chromaticity coordinates of Ca3WO6:Sm3+ can be regulated to approach the NTSC standard values of red phosphor by codoping Eu3+ ions. The photoluminescence properties suggest that novel Ca3WO6:Sm3+, Eu3+ phosphor might have a potential application for near-UV LEDs.
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This work is supported by the National Natural Science Foundation of China (No. 21271049).
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Zhang, S., Hu, Y., Chen, L. et al. Photoluminescence properties and energy transfer of Ca3WO6:Sm3+ co-doped Eu3+ . Appl. Phys. A 115, 1073–1080 (2014). https://doi.org/10.1007/s00339-013-7950-6
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DOI: https://doi.org/10.1007/s00339-013-7950-6