Spherical red-emitting X1-Y2SiO5:Eu and α-Y2Si2O7:Eu phosphors with high color purity: The evolution of morphology, phase and photoluminescence upon annealing

Surface plasmon assisted preparation of X1-type Y2SiO5:Eu3+-Au luminescent crystals

“…The amount of silicon source starting material is one of the key factors for the preparation of yttrium silicate crystals. 8,16 Therefore, four groups of core–shell structure samples with different amorphous SiO 2 shell thicknesses are synthesized to determine the optimal amount of silicon source for Y 2 SiO 5 crystal acquisition (Fig. 3a).…”

“…Typically, Y 2 SiO 5 can crystallize in two different monoclinic structures, X1 type of space group P 2 1 / c and X2 type of space group B 2/ b . 16,17 The crystal structure will change with temperature, that is, when the treatment temperature is around 1050 °C, X1 type Y 2 SiO 5 is preferably formed, while it transforms into X2 type when the temperature increases to ∼1400 °C. To date, the most commonly reported methods for the preparation of both X1 and X2 type Y 2 SiO 5 include the sol–gel process, 18,19 hydrothermal method, 20,21 combustion synthesis, 22 solid state reaction, 23 etc .…”

Cool green-emissive Y2Si2O7:Tb3+ nanophosphor: auto-combustion synthesis and structural and photoluminescence characteristics with good thermal stability for lighting applications

“…Additionally, McCamy's third-order polynomial was utilized for computing the CCT values based on the Kelvin (K) scale to assess the quality of light, given by eqn (22) 5.…”

“…Because of their chemical stability, yttrium disilicates, also known as yttrium pyrosilicates (Y 2 Si 2 O 7 ), are among the most suitable silicates. 22 The photoluminescence of Ce 3+ and Eu 3+ was particularly explored with respect to the luminescence characteristics of rare earth-doped Y 2 Si 2 O 7 . Nowadays, the green phosphor is quite popular in the lighting industry.…”

Investigation of Nd3+:Y2Si2O7 Phosphors Using Photoluminescence and Positron Annihilation Lifetime Spectroscopy

“…Finally, δ-Y 2 Si 2 O 7 grows into an orthorhombic structure with the Pna 21 space group and allocates two different crystallographic sites to Y 3+ ions with seven coordination numbers. 13,14 Y 2 Si 2 O 7 doped with various RE 3+ elements has been studied extensively for lasers, scintillation, optical thermometry, and lightemitting diode applications, 4,5,[15][16][17][18][19][20] whereas a few studies have been reported on Nd 3+ :Y 2 Si 2 O 7 phosphors. 4,[21][22][23] Studies on Nd 3+ : Y 2 Si 2 O 7 include the dependence of phase and size configurations on spectral properties, magnetic properties, and white light generation.…”