6533b853fe1ef96bd12ac9bc

RESEARCH PRODUCT

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

Larisa GrigorjevaKrisjanis SmitsS. ZazubovichO. SidletskiyT. KärnerAleksejs ZolotarjovsV. Bondar

subject

Materials scienceGadoliniumDopingBiophysicsAnalytical chemistrychemistry.chemical_elementGeneral ChemistryElectronAtmospheric temperature rangeCondensed Matter PhysicsBiochemistryAtomic and Molecular Physics and OpticsIonchemistryThermal stabilityIrradiationLuminescence

description

Abstract Thermally stimulated luminescence (TSL) characteristics (TSL glow curves and TSL spectra) are investigated in the 4–520 K temperature range for the single crystals of gadolinium and lutetium–gadolinium oxyorthosilicates X-ray irradiated at 4 K, 8 K, or 80 K. The nominally undoped Gd2SiO5 and (Lu,Gd)2SiO5 crystals, containing traces of Ce3+, Tb3+, and Eu3+ ions, and Ce3+-doped Gd2SiO5 and (Lu,Gd)2SiO5 crystals are studied. For the first time, the TSL glow curves of these materials are measured separately for the electron (intrinsic, Ce3+- or Tb3+-related) and hole (Eu3+-related) recombination luminescence, and the TSL glow curve peaks, arising from thermal decay of various electron and hole centers, are identified. The origin of the traps related to the TSL peaks is discussed, and thermal stability parameters of the electron and hole traps are calculated.

yearjournalcountryeditionlanguage
2015-03-01Journal of Luminescence
https://doi.org/10.1016/j.jlumin.2014.11.034