Efficient luminescence lifetime thermometry with enhanced Mn4+-activated BaLaCa1−xMgxSbO6 red phosphors

Mn4+-activated phosphors are of great interest in luminescence lifetime thermometry due to the luxuriant luminescence properties influenced by the locally surrounding crystal field. It is highly desirable to develop effective Mn4+-based luminescence lifetime thermometry through modulating the structural parameters. In this work, by introducing the smaller Mg2+ ions to replace Ca2+ site in the BaLaCaSbO6 matrix, a 4.2-fold enhance in the...