Time-resolved spectroscopy studies of Gd2SiO5:Ce3+ from spherical particles

Blue emission spectrum of Ce3+:ZnO-B2O3-SiO2 optical glass

“…The blue emission displayed by this cerium glass could be due to a radiative transition from excited 5d level to the 2 F ground state of the dopant ions [12,13]. Such similar emissions from Ce 3 + at higher wavelengths have earlier been observed in other host materials in the literature [14,15]. Since the present glass system has been well known as a phosphorescent natured chemical combination [16], electron-phototransfer could likely be occurring between the electron donor centres and the luminescent centres.…”

Structural and spectroscopic characterization of Lu2O3:Eu nanocrystalline spherical particles

“…Such a shape allows for the most efficient packing (the lowest volume of interparticle voids) and the surface-to-volume ratio is the smallest, making the surface quenching effects less significant. Indeed, there are reports showing that the fabrication of fully spherical particles is possible [15][16][17][18].…”

Cathodoluminescence of Ce-doped Gd2SiO5 and Gd9.33(SiO4)6O2 phosphor under continuous electron irradiation

“…The silicates of rare earth such as YSO and GSO have been widely investigated for the optical applications, because of the inherent stabilities [13][14][15][16][17][18][19][20][21][22][23]. GSO:Ce has been especially used as the single crystal scintillator having high resistance against the radiation [14,15].…”

“…Consequently, GSO:Ce is also expected as the phosphor having high stability against electron beam irradiation, because the mechanism of the cathodoluminescence is almost the same as that of the scintillation. Although synthesis and photoluminescence properties have been reported on GSO polycrystalline phosphor [16][17][18][19], there have been no studies about the CL degradation. The growth of the single crystal of GSAP:Ce having similar chemical composition to GSO:Ce has also been reported for the scintillator application [20].…”