SYNTHESIS, STRUCTURE AND OPTICAL PROPERTIES OF COMPLEXIS PHOSPHATE- VANADATES OF K- LN (LN= Y, LA, EU, GD).

抄録

Influence of Eu³⁺ introduction on structure and properties of K₃Ln(PO₄)(VO₄)_2-x (Ln = Y, La, Gd) is investigated. Samples of K₃Ln_1-yEu_y(PO₄)_x(VO₄)_2-x(Ln = Y, La, Gd; 0≤x≤2) were received by solid state method by multistep annealing from 70 to 750 °C with use of Ln₂O₃ (Ln= Y, La, Eu, Gd), KH₂PO₄, NH₄VO₃ and K₂CO₃. There are restrict or wide solid solution range is observed in systems under investigation.