Synthesis and optical properties of Tb3+ doped CdF2 single crystals

Luminescence of Cadmium Fluoride Doped with Rare-earth Ions

“…However all emission bands, published in [12], were shifted near 10 nm to shorter wavelength side against to those measured in CdF 2 , CaF 2 , SrF 2 , BaF 2 . It seems the spectra, measured in paper [12], belong to Tb 3+ having oxygens in vicinity.…”

“…The emission spectra of sample, illuminated by 350 nm light, exhibit a weak blue emission and a strong green emission in the spectral range 370-460 nm and 478-612 nm, which are assigned to 5 D 3 -7 F j and 5 D 4 -7 F j transitions of Tb 3+ , respectively [11]. However all emission bands, published in [12], were shifted near 10 nm to shorter wavelength side against to those measured in CdF 2 , CaF 2 , SrF 2 , BaF 2 . It seems the spectra, measured in paper [12], belong to Tb 3+ having oxygens in vicinity.…”

“…Very recently the optical spectra of CdF 2 -1% Tb 3+ were investigated [12]. The pulled crystals were prepared by use of the Bridgman technique from a vacuum furnace in fluoride atmosphere.…”

“…The pulled crystals were prepared by use of the Bridgman technique from a vacuum furnace in fluoride atmosphere. The terbium doping is introduced in the form of oxides (Tb 2 O 3 ) with nominal concentration of 1% [12]. The emission spectra of sample, illuminated by 350 nm light, exhibit a weak blue emission and a strong green emission in the spectral range 370-460 nm and 478-612 nm, which are assigned to 5 D 3 -7 F j and 5 D 4 -7 F j transitions of Tb 3+ , respectively [11].…”

Photon Conversion and Radiation Synergism in Eu/Tb Complexes Incorporated Poly Methyl Methacrylate

“…Curve 2 in Figure 3 presents the emission spectrum of the PMMA polymer incorporated with TBA under 254 nm excitation. From the emission spectrum, four emission transitions have been identified at 488, 546, 583, and 619 nm, respectively, assigning to the characteristic 5 D 4 → 7 F ( = 6, 5, 4, 3) transitions within the 4f 8 configuration of the Tb 3+ ions [59][60][61]. The most intense emission peak corresponding to 5 D 4 → 7 F 5 transition of Tb 3+ ions is located at 546 nm with a full-width at half-maximum (FWHM) of only 10 nm, and its intensity is apparently stronger than other peaks, resulting in a bright green emission under 254 nm UV radiation.…”