Open AccessЛюминофор ближнего и коротковолнового ИК-диапазона на основе ниобата литий-лантана со структурой кубического граната
Author(s) -
И. В. Бакланова,
О.А. Липина,
Л.Г. Максимова,
И.В. Бакланова,
А.Ю. Чуфаров,
А.П. Тютюнник,
В.Г. Зубков
Publication year - 2019
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2019.05.47603.10f
Subject(s) - luminescence , neodymium , materials science , phosphor , holmium , ion , lithium (medication) , energy transfer , solid state , lanthanum , optoelectronics , analytical chemistry (journal) , laser , chemistry , inorganic chemistry , optics , atomic physics , physics , medicine , organic chemistry , chromatography , endocrinology
Cubic garnets activated by neodymium and holmium, Li_6CaLa_2Nb_2O_12:Nd^3+,Ho^3+, were obtained by solid-state method. The main regularities of changes in the luminescence properties of Li_6C-aLa_2Nb_2O_12:Nd^3+,Ho^3+ solid solutions in the visible, near-IR, and short-wave IR ranges under 808 nm laser diode radiation are determined. The energy transfer mechanism between active centers, involving the participation of Nd^3+ ions as sensitizers for the luminescence of Ho^3+ ions, is proposed. Low phonon energy, high luminescence intensity in the range of 2.0–3.0 μm, and weak up-conversion luminescence in the region of 450–780 nm make it possible to consider the cubic lithium–lanthanum niobates Li_6CaLa_2Nb_2O_12:Nd^3+,Ho^3+ as promising phosphors of the short-wave IR range.