Facile route to produce spherical and highly luminescent Tb3+ doped Y2O3 nanophosphors

Photoluminescence of green nanophosphors Sr2MgSi2O7 doped with Tb3+ under 374-nm excitation*

“…[8] In particular, they also discussed the energy transfer mechanism from Zn 2 GeO 4 host to Tb 3+ ion. Although some existing matrix materials, for instance, KSr(Cd,Y)(PO 4 ) 2 , [9] Ca 3 Al 2 Si 6 O 18 , [10,11] BiOCl, [12] Y 2 O 3 , [13][14][15][16] MgAl-NO 3 , [17] β -PbF 2 glass-ceramics, [18] Ba 2 SiO 4 , [19,20] etc, are all excellent hosts for Tb 3+ ion, their optimal excitation wavelengths are in the deep ultraviolet (200 nm-280 nm) region. As is well known, the semiconductor chips in DUV region are very expensive, which is undoubtedly unconducive to wider applications of nanophosphor-doped Tb 3+ ion in the field of lightemitting diode (LED) illumination.…”

Lanthanide-Doped Y₂o₃ - The Photoluminescent and Radioluminescent Properties of Sol-Gel Prepared Samples

“…Pure or RE-doped Y 2 O 3 nanopowders have been synthetized by e.g. co-precipitation [22], the decomposition of an yttrium complex [23] and a combustion synthesis [24]. Thin films were deposited by physical vapour deposition [25] or a sol-gel method [26].…”