Shinde K N, Dhoble S J
N.S. Science and Arts College, Bhadrawati, District Chnadrapur, 442902, India.
Luminescence. 2014 Aug;29(5):549-52. doi: 10.1002/bio.2562. Epub 2013 Jul 31.
M5(PO4)3F:Eu(2+) (M = Ca and Ba) co-doped with Ce(3+) phosphors were successfully prepared by the combustion synthesis method. The introduction of co-dopant (Ce(3+)) into the host enhanced the luminescent intensity of the M5(PO4)3F:Eu(2+) (M = Ca and Ba) efficiently. Previously, we have reported the synthesis and photoluminescence properties of same phosphors. The aim of this article is to report energy transfer mechanism between Ce(3+) ➔Eu(2+) ions in M5(PO4)3F:Eu(2+) (M = Ca and Ba) phosphors, where Ce(3+) ions act as sensitizers and Eu(2+) ions act as activators. The M5(PO4)3F:Eu(2+) (M = Ca and Ba) co-doped with Ce(3+) phosphor exhibits great potential for use in white ultraviolet (UV) light-emitting diode applications to serve as a single-phased phosphor that can be pumped with near-UV or UV light-emitting diodes.
通过燃烧合成法成功制备了共掺杂Ce(3+)的M5(PO4)3F:Eu(2+)（M = Ca和Ba）荧光粉。向基质中引入共掺杂剂（Ce(3+)）有效地增强了M5(PO4)3F:Eu(2+)（M = Ca和Ba）的发光强度。此前，我们已经报道了相同荧光粉的合成及光致发光性质。本文的目的是报道M5(PO4)3F:Eu(2+)（M = Ca和Ba）荧光粉中Ce(3+)→Eu(2+)离子之间的能量转移机制，其中Ce(3+)离子作为敏化剂，Eu(2+)离子作为激活剂。共掺杂Ce(3+)的M5(PO4)3F:Eu(2+)（M = Ca和Ba）荧光粉在白色紫外（UV）发光二极管应用中具有巨大潜力，可作为一种能被近紫外或紫外发光二极管激发的单相荧光粉。
