The excitation (em = 595 nm) spectra of MgZn2(PO4)2:0.03Eu3+ at 300 K. The VUV excitation spectra (110–200 nm) were measured by a synchrotron radiation light and a Xe lamp was used for UV excitation spectra (200–550 nm); (b) : The emission spectra under excitation of 254 nm. The inset shows the enlarged spectra in the region of the 5D0–7F0 transitions.