Synthesis and Luminescent Properties of Lu.sub.2O.sub.2SO.sub.4 : Eu.sup.3+ Spherical Particles

• Published in: Russian journal of general chemistry Vol. 93; no. 8; p. 2071
• Main Authors: Larionova, K. A, Denisenko, Yu. G, Osseni, S. A, Andreev, O. V, Razumkova, I. A
• Format: Journal Article
• Language: English
• Published: Springer 01.08.2023
• Subjects: Medical imaging equipment; Powders
• ISSN: 1070-3632; 1608-3350
• DOI: 10.1134/S1070363223080169

Potential use of Lu.sub.2O.sub.2SO.sub.4:xEu.sup.3+ as a contrast agent in multifunctional medical imaging was studied. Powders of Lu.sub.2O.sub.2SO.sub.4 : xEu.sup.3+ (x = 1-7 mol %) solid solutions consisting of spherical particles with a diameter of approximately 300 nm were synthesized by co-precipitation followed by calcination. The duration of synthesis influences the particle morsphology: increase in the coprecipitation duration leads to coarse particles that lost their spherical shape due to formation of conglomerates. Excitation of Lu.sub.2O.sub.2SO.sub.4 : Eu.sup.3+ at a wavelength of 270 nm leads to the appearance of distinct peaks in the 610-620 and 690-710 nm regions, with intensity depending on the concentration of Eu.sup.3+ ions in a sample.