Fig. 5: Luminescence thermal stability and thermometric properties of ASBO:Fe3+,Yb3+ (A = Sr, Ba). | Light: Science & Applications

Fig. 5: Luminescence thermal stability and thermometric properties of ASBO:Fe3+,Yb3+ (A = Sr, Ba).

From: Energy extraction from dark Fe3+ in A2Sc2B4O11:Fe3+, Yb3+ (A = Sr, Ba) toward promoted NIR luminescence and pc-LED light source for multifunctional applications

Fig. 5: Luminescence thermal stability and thermometric properties of ASBO:Fe3+,Yb3+ (A = Sr, Ba).The alternative text for this image may have been generated using AI.

Temperature-dependent PL spectra of a SSBO:0.02Fe3+,0.15Yb3+ and b BSBO:0.02Fe3+,0.15Yb3+ phosphors. The insets show their corresponding integral PL intensities normalized to the initial intensity at room temperature (~ 298 K). Fitting curve of Ln (I0/I-1) and 1/kT coordinate relationship for c SSBO:0.02Fe3+,0.15Yb3+ and d BSBO:0.02Fe3+,0.15Yb3+, respectively. e Linear fitting of PL intensities versus temperature for SSBO:0.02Fe3+,0.15Yb3+ (solid square) and BSBO:0.02Fe3+,0.15Yb3+ (solid round) phosphors. f The relative sensitivity Sr of temperature sensing over 298-473 K for SSBO:0.02Fe3+,0.15Yb3+ (solid square) and BSBO:0.02Fe3+,0.15Yb3+ (solid round), respectively

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