Synthesis and Luminescence Properties of Pr3+-Doped BiPO4 Polycrystals
V.P. Chorniia, S.G. Nedilko a, K.L. Bychkov a, K.V. Terebilenko a, M.S. Slobodyanik a and V.V. Boyko b
aTaras Shevchenko National University of Kyiv, 64/13 Volodymyrska Str., 01601 Kyiv, Ukraine
bNational University of Life and Environmental Sciences of Ukraine, 15 Geroiv Oborony Str., 03041 Kyiv, Ukraine
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The results of synthesis, crystal structure characterization and luminescence properties study of the Pr3+-doped bismuth orthophosphate, BiPO4, polycrystals are reported. It was found that doping of bismuth orthophosphate with praseodymium of concentration more than 1% leads to phase transition of BiPO4 from so-called "high-temperature monoclinic" to "low-temperature monoclinic" structure. At room temperature studied samples revealed intensive red luminescence caused by radiation electronic transitions in the Pr3+ ions under their intrinsic f → f excitation at 3H43P1+1I6 absorption transition. Influence of phase transformation as well as multi-phonon and cross-relaxation processes on the luminescence of the Pr3+-doped BiPO4 compounds were discussed.

DOI: 10.12693/APhysPolA.133.798
PACS numbers: 78.55.Hx, 81.30.Hd