Terbium-europium fluorides surface modified with benzoate and terephthalate anions for temperature sensing: Does sensitivity depend on the ligand?

Temperature sensing in Tb3+/Eu3+-based tetranuclear silsesquioxane cages with tunable emission

“…The relative higher red emission at lower Eu 3+ amount for 1 also suggests that the intramolecular Tb 3+ -to-Eu 3+ ET occurs to the detriment of Tb 3+ emission 5 D 4 / 7 F 5 (543 nm), which is in agreement with the literature. 17,19 The Tb 3+ -to-Eu 3+ ET has previously been reported in inorganic 24,25 and molecular luminescent materials. 17,[26][27][28] Its occurrence and its efficiency highly depends on the crystal structure, the presence of relatively short intra or intermolecular Tb 3+ .Eu 3+ distances and/or the nature of ligands.…”

Lanthanide‐Based Thermometers: At the Cutting‐Edge of Luminescence Thermometry

“…Ln 3+ ‐doped molecular systems (essentially with Eu 3+ and Tb 3+ ions) have been widely explored in luminescent thermometry, since the pioneering work of Sato et al in 1989 . For a review on molecular Ln 3+ ‐based thermometers, see the work of Uchiyama et al More recent noteworthy and illustrative examples are the works of Suzuki et al, Hatanaka et al, and Khudoleeva et al The first example showed real‐time thermogenesis in a single HeLa cell using the Eu(tta) 3 complex (tta − stands for 3‐thenoyltrifluoroacetonate) dissolved in dimethyl sulfoxide. Temperature variations as small as 1 K in the physiological range were detected .…”

Ultrasound-Assisted Synthesis of Luminescent Micro- and Nanocrystalline Eu-Based MOFs as Luminescent Probes for Heavy Metal Ions

“…Rare-earth-based metal-organic frameworks (MOFs) are actively used in various fields of science and technology as luminescent sensors [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ], LED components [ 12 ], luminescent probes for bioimaging [ 13 , 14 ], and luminescent thermometers [ 15 , 16 ]. Small-sized crystals of the rare-earth-based MOFs are especially interesting due to their unique properties.…”