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Preparation of Red-Emitting Phosphor [ {\hbox {K}}_{0.8}{\hbox {Y}}_{0.65}{\hbox {Eu}}^{3+}_{0.08} ][ {\hbox {Mo}}_{0.2}{\hbox {W}}_{0.8}{\hbox {O}}_{4} ] and Calculation of {\hbox {Eu}}^{3+} ^{5}{\hbox {D}}_{0} Quantum Efficiency

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6 Author(s)
Fa-Bin Cao ; Anhui Provincial Key Lab. for Metall. Eng. & Resources Recycling, Anhui Univ. of Technol., Ma''anshan, China ; Liao-Sha Li ; Zhao-Jin Wu ; Xing-Rong Wu
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The red-emitting phosphor [K0.8Y0.65Eu3+0.08 ][Mo0.2W0.8O4] was produced by a solid-state method. Through XRD spectra, DTA-TG and photo-luminescent analysis, the possible reaction path and the emission mechanism of the phosphor were mentioned, and the partial Judd-Ofelt parameters and quantum efficiency of Eu3+ 5D0 energy level were calculated under 395 nm excitation. The results indicate that the red-emitting phosphor, of which the quantum efficiency is 13.43%, can become the potential applications for white light-emitting diode in the future.

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Display Technology, Journal of  (Volume:8 ,  Issue: 3 )