Abstract

The red-emitting phosphor [K_0.8Y_0.65Eu³⁺_0.08][Mo_0.2W_0.8O₄] 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.

© 2012 IEEE

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