Strong erbium luminescence in the near-infrared telecommunication window

Syntheses, crystal structures, visible and near-IR luminescent properties of ternary lanthanide (Dy3+, Tm3+) complexes containing 4,4,4-trifluoro-1-phenyl-1,3-butanedione and 1,10-phenanthroline

“…It is found that the 1478-nm emission consists of three peaks, which could be ascribed to the Stark splitting of 4f electronic levels [14]. To enable a wide gain bandwidth for optical amplification, a broad emission band is desirable [28,29]. In our case, the full width at half-maximum (fwhm) of the 1478-nm emission band is 92 nm.…”

Fully Fluorinated Imidodiphosphinate Shells for Visible‐ and NIR‐Emitting Lanthanides: Hitherto Unexpected Effects of Sensitizer Fluorination on Lanthanide Emission Properties

“…Approaches to eliminate high-energy vibrations in ligand structures have shown to be effective for improving sensitisation properties in NIR and visible emission, although the ligands either leave the metal coordinatively unsaturated or do not carry sensitiser units. Approaches involved alkyl chain C À F substitution of diketonate ligands, [32][33][34][35][36][37][38] deuteration of podand structures [39] and sulfonylaminate binding sites [40,41] with no sensitiser unit. Our studies not only demonstrate the importance of the fluorinated shell structure around the lanthanide formed by the assembly of three ligands for all the emitting lanthanides, but also provide an understanding of the effect of aromatic C À F substitution in the ligand structure on the photophysical properties of all emitting lanthanides.…”

Preparation and luminescence properties of hybrid materials containing lanthanide complexes covalently bonded to a terpyridine-functionalized silica matrix

“…To enable a wide gain bandwidth for the optical amplification, a broad emission band is desirable [28]. The full-width at half-maximum (FWHM) of this transition is 80 nm, which has potential for optical-amplification applications [29]. As can be seen from Fig.…”