Luminescence characteristics of Pr3+ doped yttrium lanthanum oxide nanopowders

There weren't secondary phases observed in (Pr
_0.005
Y
_0.895
La
_0.10
)
₂
O
₃
nanopowders. The average grain size of nanopowders calcined at 1200degC is 40 nm. The excitation and emission peak is centered at 246 nm and 613 nm, respectively.