Tunable yellow-red emission performance of Dy3+, Mn4+: NaLaMgWO6 phosphors excited with 390-nm LED

The Dy3+, Mn4+: NaLaMgWO6 phosphors are synthesized successfully using the technique of solid-state reaction at 1150 ?. The XRD and SEM-EDS are measured to analyze the phase purity. The concentrations of Dy3+, Mn4+, Mg2+, Na+, La3+ and W6+ are measured by ICP. The absorption and excited spectra are presented, which indicate the 390 nm is suitable for the tunable yellow-red light excitation. Using the 390-nm LED as the excitation source, the emission spectra with different doped concentrations ratios of Dy(3+)to Mn4+ are obtained, which shows good tunable yellow-red emission performance.

Automated summary

The Dy3+, Mn4+: NaLaMgWO6 phosphors were successfully synthesized using solid-state reaction at 1150 ℃. XRD and SEM-EDS were used to analyze phase purity, while ICP was used to measure concentrations of various ions. The absorption and excited spectra showed that 390 nm was suitable for tunable yellow-red light excitation. Emission spectra with different doped concentrations ratios of Dy(3+) to Mn4+ demonstrated good tunable yellow-red emission performance when using 390-nm LED as the excitation source.