Luminescence of the System β Zn[sub 3](PO[sub 4])[sub 2]-Cd[sub 3](PO[sub 4])[sub 2]:Mn

Abstract

When zinc orthophosphate and cadmium orthophosphate mixtures are activated by manganese and fired at 850°C, phosphors are obtained whose luminescence is not a linear function of the mole proportions of the initial ingredients. The peak emission vs. composition curve shows several abrupt breaks which correspond to abrupt phase changes as determined by x‐ray diffraction analysis.