Dopant and compositional modulation triggered long-wavelength ultra-broadband and tunable NIR emission in MgO: Cr3+ phosphor for NIR spectroscopy applications

A novel broadband near‐infrared Ca2Y3Sb3O14: Cr3+ rhombohedral pyrochlores phosphor and its application in pc‐LEDs

“…In general, the strength of the EPC effect can be represented by the value of S: S > 10 or S < 1 indicates a strong or weak EPC effect in the sample, whereas 1 < S < 10 indicates a moderate EPC effect in the sample. 47 In this work, the Ca 2 Y 3 Sb 3 O 14 : 0.05Cr 3+ phosphor exhibits a moderate EPC effect. The configuration diagram in Figure 5C explains the emission thermal quenching phenomenon.…”

“…By fitting with the previous equation, the values of hv and S are determined to be 0.0145 eV and 7.80, respectively (Figure S5). In general, the strength of the EPC effect can be represented by the value of S: S > 10 or S < 1 indicates a strong or weak EPC effect in the sample, whereas 1 < S < 10 indicates a moderate EPC effect in the sample 47 . In this work, the Ca 2 Y 3 Sb 3 O 14 : 0.05Cr 3+ phosphor exhibits a moderate EPC effect.…”

High‐Tc 1D Phase‐Transition Semiconductor Photoluminescent Material with Broadband Emission

“…Previous studies have shown that 1D core‐shell quantum wire structures with angular and edge shared metal halide octahedral chains can exhibit excellent broadband STE emission, [39] such as [Et 4 N] 2 [PbBr 3 ] 2 (Et=ethyl) [40] . It is worth noting that the wide band emission characteristics of perovskite materials make it more widely used in light‐emitting materials, especially in near‐infrared light‐emitting broadband emission materials [41–43] . Therefore, 1D organic inorganic metal halide hybrid perovskite type reversible phase‐transition materials provide a high‐quality and convenient selection platform for designing efficient broadband light emitters and multifunctional reversible phase‐transition materials with high‐quality luminous properties.…”

Novel broadband NIR phosphors Y2Mg2Ga2Si2O12:xCr3+ for NIR LED applications

“…[15][16][17] Therefore, the greatest challenge in facilitating advances in NIR spectroscopy is the need to effectively generate broadband and efficient NIR light. 18 Recently, near-infrared phosphor-converting light-emit-ting diodes (NIR pc-LEDs) have been developed offering the benefits of compact size, energy conservation, high efficiency, and extended service duration. [19][20][21] As an essential component of NIR pc-LEDs, the NIR phosphor draws considerable attention from material science researchers.…”