Influence of yttrium content on the CeLu1 and CeLu2 luminescence characteristics in (Lu1−xYx)2SiO5:Ce single crystals

► We separated CeLu1 and CeLu2 luminescence characteristics in Ce-doped (Lu1-xYx)2SiO5:Ce. ► We investigated temperature dependence of decay time and delayed recombination integral, separately for CeLu1, CeLu2 centers. ► We examinated the influence of yttrium content on the CeLu1 and CeLu2 luminescence characteristics in (Lu1-xYx)2SiO5:Ce.