Fig. 5From: Synthesis and Properties of the La1 − x − y Eu y Ca x VO4 (0 ≤ x, y ≤ 0.2) CompoundsEmission spectra of the La1 − x Ca x VO4 samples, λex = 310 (1–3) and 290 nm (4); x = 0 (1), 0.2 (2), and 0.1 (3, 4), T = 77 KBack to article page