Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: May 21, 2025
The advancement of phosphors with multiple capabilities has garnered significant interest, especially for applications in optical thermometry and dynamic anticounterfeiting technologies. In this work, we successfully synthesized a series color-tunable Pr3+ single-doped Ca2InTaO6 (CITO:Pr3+) persistent luminescence (PersL) materials by using high-temperature solid-state method. crystal structure the obtained CITO:Pr3+ phosphor was characterized X-ray diffraction Rietveld refinement. Concentration-, excitation wavelength-, temperature-dependent properties were systematically studied, results revealed that these display versatile behaviors possess excellent temperature sensing characteristics remarkable capabilities. Furthermore, incorporating defect energy levels through nonequivalent substitution Ca2+, also exhibit red PersL emission. This multimodal capability underpins their potential applications. Additionally, differential thermal quenching rates between 3P0 → 3H4 1D2 transitions leveraged sensing. CITO:0.015Pr3+ phosphor, when excited at 318 nm, achieved maximum absolute sensitivity (Sa) relative (Sr) values 20.42% K-1 393 K 2.37% 345 K, respectively. These highlight promising both precise measurement.
Language: Английский