A kinetics model for Tb3+ recombinations in low doped Tb:Lu1.8Y0.2SiO5 crystals

摘要: The detailed characterization of the terbium related optical properties low doped oxyorthosilicates lutetium and yttrium is reported. introduction ions generates an ultraviolet absorption band peaked at about 242 nm line shaped emissions in 350–600 range. transitions are to D53 D54 levels analysis decay time measurements allows individuate a cross relaxation mechanism among Terbium ions. We propose three level kinetic model which able reproduce experimental data allowing discriminate radiative nonradiative contributions case content Tb (nominal 10 ppm). reported study addresses two important goals, providing, from one side, possible inorganic phosphors, other since traces unwanted elements were identified numerous commercial samples cerium oxyorthosilicates, it can contribute increase ...