Luminescence properties of Ce-doped oxyorthosilicate nanophosphors and single crystals

Electron and hole traps in X-ray irradiated Y2 SiO5 and Lu2 SiO5 crystals

“…1 – YSO No. 4) and LSO crystals as well as YSO:Ce, LSO:Ce, and LSO:Sm crystals reported in earlier published papers (see, e.g., ). From the analysis of the absorption spectra of all the Ce‐doped crystals studied and taking into account the GDMS analysis data on the true Ce content in three of these samples, we can estimate that the crystals studied contained from 0.04 at% to 0.3 at% of Ce.…”

“…, and YSO crystals, in Refs. . The recombination process responsible for each peak was found to follow the first‐order kinetics, and all the peaks were concluded to be of an electron origin.…”

Photoluminescence, photo-stimulated luminescence and thermoluminescence properties of CaB2O4 crystals activated with Ce3+

“…The fluorescence QE for the emission was approximately 70%. The emission wavelength in the case of Ce 3+ :-CaB 2 O 4 was short compared to commercial oxide phosphors activated with Ce 3+ such as Ce 3+ :Y 3 Al 5 O 12 , Ce 3+ :Gd 2 SiO 5 , Ce 3+ :L 2 SiO 5 , and Ce 3+ :Gd 3 Al 2 Ga 3 O 12 [19][20][21][22][23]. This can be considered to be a result of the influence of the host crystal lattice on the splitting of 5d levels of Ce 3+ , because the 5d levels are significantly affected by the ligand field of the first coordination sphere [24].…”

Thermally stimulated luminescence of undoped and Ce3+-doped Gd2SiO5 and (Lu,Gd)2SiO5 single crystals

“…The emission bands of the intrinsic, Ce 3 þ -, Tb 3 þ -related and Eu 3 þ -related luminescence centers are located in the 2.5-3.2 eV and 1.7-2.1 eV energy ranges, respectively (see, e.g., Refs. [20,32,39,46,[48][49][50][51][52][53][54][55][56][57]), i.e. they are well separated.…”