Luminescent spectroscopy of sodium titanium orthophosphate crystals doped with samarium and praseodymium ions

Abstract Luminescence properties of NaTi2(PO4)3 phosphate pure and doped with samarium and praseodymium ions crystals have been studied. Luminescence spectra of the crystals consist of two main bands in the green-orange and red spectral regions. Linear spectra of rare earth ions were also observed in samarium-doped samples. The bands’ maximum positions depend on the crystals’ composition and the samples’ temperature. The origin and structure of emission centers in the investigated crystals are discussed.