Abstract
ZnS: MnF2 phosphors and their references were investigated with X-ray photoelectron spectroscopy. The atomic ratio of F to Mn in ZnS: MnF2 was found to be remarkably lower than that in MnF2 film. The binding energy of Mn2p3/2 in ZnS: MnF2 is near that in β-MnS and ZnS doped with Mn atoms by heat-treatment. It is concluded that most Mn atoms in ZnS: MnF2 are not in the MnF2 molecules, but replace Zn atoms. This fact is also discussed on the basis of self lattice potential energy.
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