. 2025 Feb 17;15(7):5327–5337. doi: 10.1039/d5ra00093a

Table 2. FIR-based thermometric performances of several typical Ln³⁺ ions doped materials.

Materials	S _{r max} (% per K)	T (K)	T-range (K)	Transitions	λ (nm)	Ref.
CaZnOS:Er³⁺	0.33	603.15	303–603	²H_11/2/⁴S_3/2	520/539	48
PKAZLF glass:Er³⁺	0.79	630	298–773	²H_11/2/⁴S_3/2	530/550	49
α-NaYF₄:Nd³⁺	0.12	273	273–423	⁴F_3/2–⁴I_9/2 (Stark)	863/870	50
LaF₃:Nd³⁺	0.26	296	296–345	⁴F_3/2–⁴I_9/2 (Stark)	865/885	51
β-NaYF₄:Yb³⁺, Ho³⁺	0.9	300	300–500	⁵F₅–⁵I₈/²S₂, ⁵F₄–⁵I₈	545/650	52
SrF₂:Yb³⁺, Er³⁺	1.20	298	298–383	²H_11/2/⁴S_3/2	525/545	53
β-NaLuF₄:Yb³⁺, Er³⁺, Ho³⁺	0.74	298	298–503	²H_11/2/⁴S_3/2	527/547	54
GdVO₄:Er³⁺/Yb³⁺	0.7	300	300–453	²H_11/2/⁴S_3/2	530/550	55
LaMgTiO₆:Pr³⁺	1.28	350	77–500	¹D₂, ³P₀–³H₄	608/499	35
PMN-PT-PYN:Er³⁺	0.3	—	113–413	²H_11/2/⁴S_3/2	525/539	56
PMN-PT:Pr³⁺	0.70	—	223–313	³P₁–³H₅/³P₀–³H₅	534/500	34
PMN-PT:Pr³⁺	0.06	—	223–313	³P₁–³H₅/³P₀–³F₂	534/650	34
NCYM:Pr ³⁺	0.69	298	298–498	³P₁–³H₅/³P₀–³H₅	533/558	This work
NCYM:Pr ³⁺	1.2	298	298–498	³P₁–³H₅/³P₀–³F₂	533/651	This work

Table 2. FIR-based thermometric performances of several typical Ln3+ ions doped materials.