Photosensitization in highly luminescent nonmacrocyclic Samarium(III) complexes for application in light-emitting systems

Computational analysis, Urbach energy and Judd–Ofelt parameter of warm Sm3+complexes having applications in photovoltaic and display devices

“…The Δ E T 1 → 4 G 5/2 value of L was 3284 cm −1 that was optimum for the sensitisation of Sm 3+ ions via organic L . 77…”

“…Similarly, according to Latva's empirical rule, the values of DE T 1 / 4 G 5/2 within 2000-5000 cm −1 range are imperative for effective energy transfer. The DE T 1 / 4 G 5/2 value of L was 3284 cm −1 that was optimum for the sensitisation of Sm 3+ ions via organic L. 77…”

“…This secondary ligand has synergistic effects with L, which leads to effective energy transfer. 77 To explain the surrounding of the Sm 3+ ion, the intensity ratio (I Sm ) was calculated by dividing the electric dipole intensity by the magnetic dipole intensity. The higher the intensity ratio, the lower the symmetry around the luminescent centre and vice versa.…”

“…† However, the observed CCT values are consistent with other Sm(III) complexes existing in the literature. 77,93 The Judd-Ofelt values, decay time, color purity, intrinsic quantum efficiency and relative quantum efficiency values of previously reported similar systems are compared and presented in Table S2 in the ESI. † The outcomes of the as-synthesised complexes are comparable with the similar systems.…”

Decoding the Mechanistic Strategies of Lanthanide‐based Luminescent Metal‐Organic Frameworks towards Antibiotic Detection

“…However, the material finds fascinating applications in various light‐emitting devices due to its strong red emission. [ 84 ] Sm 3+ possessing a 4f 5 vacant orbital behaves like the neighboring isostructural Eu 3+ lanthanide solvates giving rise to a very similar spectrum. The highest possible absorption of photons of energy takes place from the ground state 6 H 5/2 to excited energy levels giving rise to a broad absorption spectrum.…”