Discovering the Potential of High Phonon Energy Hosts in the Field of Visible-to-Ultraviolet C Upconversion.

ABSTRACT: The recent pandemic has intensified the search for new ultraviolet C (UVC) phosphors excited by low-intensity visible light that can be used for disinfection or therapeutic purposes. Currently, the most promising phosphor with efficient upconversion was thus far Y₂SiO₅ (YSO) doped with Pr³⁺. However, we have studied a new material Sr₃(BO₃)₂:Pr³⁺ (SBO), whose upconversion emission is 10 times stronger than YSO, despite the high phonon energy possessed by SBO and despite the lack of optimization of synthesis and dopant concentration and the absence of co-dopant that should be added to compensate for the charge. Such an efficient upconversion is achieved by engagement of the ¹D₂ level, which is

SUBMITTER: Zdeb P 

PROVIDER: S-EPMC11417987 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature