White light emission and fluorescence enhancement of rare earth RE3+ (Tb, Eu, Dy) doped CeF3 nanoparticles

The coupling of blue emitting carbon dots with Eu3+/Tb3+ co-doped luminescent glasses for utilization in white light emitting diodes

“…For the Eu 3+ ion, the excitation transitions are 7 F 0 -5 H 3-7 (319 nm), 7 F 0 -5 D 4 (361 nm), 7 F 0 -5 G 3 (378 nm) and 7 F 0 -5 L 6 (393 nm). [46][47][48] Almost independent of the glass thickness, 7 F 6 -5 G 6 (376 nm) and 7 F 0 -5 L 6 (393 nm) are identified as the most intense bands for Tb 3+ and Eu 3+ ions, respectively. Consequently, the common excitation wavelength for both excitation bands of Tb 3+ and Eu 3+ ions is determined as 375 nm by considering the PLE spectra of all luminescent glasses.…”

Color‐tunable luminescence and energy transfer of Eu3+/Tb3+ co‐doped borophosphate glass for anti‐counterfeiting

“…With the increase of Eu 3+ concentration, the emission color could be gradually changed from yellow‐green to orange‐red, which could be clearly identified. Thus, the effective energy transfer process of Tb 3+ →Eu 3+ is fully revealed that Tb 3+ is the energy donor and Eu 3+ is the energy acceptor 37,45 …”

“…Thus, the effective energy transfer process of Tb 3+ →Eu 3+ is fully revealed that Tb 3+ is the energy donor and Eu 3+ is the energy acceptor. 37,45 F I G U R E 8 (A) Energy level diagram for energy transfer between Eu 3+ and Tb 3+ in glass sample; (B) CIE chromaticity coordinates of G4Tb, G4Tb0.25Eu, G4Tb0.5Eu, G4Tb0.75Eu, G4Tb1Eu, G4Tb1.5Eu, G4Tb2Eu, and G1Eu glass samples. 3+ -doped (λ ex = 373 nm), Tb 3+ -doped (λ ex = 393 nm) and Eu 3+ /Tb 3+ co-doped Tb 3+ -doped (λ ex = 373 nm) glasses.…”

Exploitation of Luminescent Lanthanide Nanoparticles for a Sensitivity-Enhanced ELISA Detection Method

“…It is worth noting that initially, Tb 0.85 La 0.14 Eu 0.01 F 3 NPs were tested with the expectation of an energy transfer occurring from Tb to Eu in the NPs as it has already been reported, , which would have shifted the emission bands to the red part of the spectrum and would have made two possible channels for the reading of the signal. Unfortunately, this phenomenon could not be observed under our conditions, as evidenced in Figure S15 in the presence of the ligands.…”