Enhanced near infrared-to-visible upconversion in the CaTiO₃:Yb³⁺/Er³⁺ phosphor via the host lattice modification using co-doping of Mg²⁺ ions

Abstract

The modification of CaTiO3:Yb3+/Er3+ host-lattice by the co-doping of Mg2+ ions resulted in a much brighter near-infrared (NIR)-to-visible upconversion under 980 nm excitation at an excitation intensity of ∼1 W cm−2.