title: Photoluminescence properties of Eu(3+)/ Sm(3+) activated CaZr4(PO4)6 phosphors.
abstract: Solid state reaction method was employed for the synthesis of a series of CaZr4(PO4)6: Eu(3+)/Sm(3+) phosphors. The red-emitting CaZr4(PO4)6:Eu(3+) phosphors can be efficiently excited at 396 nm and thereby, exhibit a strong red luminescence predominantly corresponding to the electric dipole transition at 615 nm. Under 405 nm excitation, CaZr4(PO4)6:Sm(3+) phosphors display orange emission with color temperatures approximately around 2200 K. The acquired results reveal that CaZr4(PO4)6: RE(3+) (RE = Eu, Sm) phosphors could be potential candidates for red and orange emitting phosphor, respectively, for UV/blue-pump LEDs.
authors.affiliation: Department of Physics, R.T.M. Nagpur University, Nagpur, 440033, India.
authors.forename: Govind B
authors.initials: GB
authors.lastname: Nair
authors.affiliation: Department of Physics, R.T.M. Nagpur University, Nagpur, 440033, India. govind1291@yahoo.com.
authors.forename: S J
authors.initials: SJ
authors.lastname: Dhoble
keywords: CaZr4(PO4)6; Inorganic phosphors; photoluminescence; rare-earth ions