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Luminescence and upconversion properties of Pr3+-doped CsSrF3 fluoroperovskite

Year: 2025
Type: article
Abstract: Praseodymium-doped compounds exhibiting visible-to-UVC upconversion are currently being extensively researched for potential applications in disinfection and sterilization. This study, for the first time, investigates the luminescence and upconversion properties of CsSrF 3 :Pr 3+ . Crystallites activated with varying concentrations of Pr 3+ were synthesized using the solid-state method. Under direct 3 P 2 excitation, upconversion emission was observed in the UVC region (230–310 nm), along with visible emission spanning 465–750 nm. The influence of Pr 3+ doping concentration on the phosphor's characteristics was systematically analyzed. To elucidate the mechanism responsible for upconversion in CsSrF 3 :Pr 3+ crystallites, the dependence of emission intensity on laser pump power and the upconversion lifetime under pulsed laser excitation were measured. • CsSrF 3 :Pr 3+ crystallites were synthesized using the solid-state method. • The luminescence properties in visible range were investigated. • Upconversion emission from 230 to 310 nm under 444 nm excitation is observed. • ESA mechanism proposed for upconversion in CsSrF 3 :Pr 3+ .
DOI: 10.1016/j.jlumin.2025.121190
Language: English
Open Access status: hybrid
Estimated APC paid: $2,850
OpenAlex ID: W4408422162
FWCI: 1.243
Cites: 35
Cited by: 6
Related to: 10