Excellent upconversion luminescence and temperature sensing performance of CdMoO:Er,Yb phosphors.

In this paper, Er/Yb co-doped CdMoO phosphors were prepared by a traditional high temperature solid state reaction method. Based on the 3D network structure of the CdMoO host and the efficient Er/Yb upconversion luminescence combinations, excellent green emission properties were observed when the prepared sample is irradiated with a laser at about 980 nm. For optical temperature sensors based on the fluorescence intensity ratio (FIR), the prepared phosphors have excellent sensitivity to temperature in the range of 293 to 473 K.

Bifunctional application of LaBWO:Bi,Sm phosphors with strong orange-red emission and sensitive temperature sensing properties.

Through a solid-phase reaction technique, Sm and Bi co-doped LaBWO phosphors with high emission intensity and sensitive temperature sensing properties have been successfully synthesized. Based on XRD Rietveld refinement, the optimized crystal structure was used as the original model to calculate the band structure and partial density of states (PDOS) by density functional theory (DFT) calculations. The luminescence characteristics of Sm and Bi co-doped LaBWO phosphors were measured and analyzed.