Co-Doping Effect of Mn and Eu on Luminescence in Strontiowhitlockite Phosphors.

A new series of Sr-based phosphates, SrMnEu(PO), were synthesized using the high-temperature solid-state method in air. It was found that these compounds have the same structure as strontiowhitlockite, which is a β-Ca(PO) (or β-TCP) structure. The concentration of Mn ions required to form a pure strontiowhitlockite phase was determined.

Abnormal Eu → Eu Reduction in CaMnEu(PO) Phosphors: Structure and Luminescent Properties.

β-Ca(PO)-type phosphors CaMnEu(PO) have been synthesized by high-temperature solid-phase reactions. The crystal structure of CaMnEu(PO) was characterized by synchrotron X-ray diffraction. The phase transitions, magnetic and photoluminescence (PL) properties were studied.