title: Improvement of photoluminescence of Cu+ ion in Li2SO4.
abstract: The synthesis of the Li(2)SO(4) : Cu phosphor using a wet chemical method is reported here. The XRD technique showed the crystalline nature of the prepared material. The presence of Na and K in the host affected the observed photoluminescence characteristics of Li(2) SO(4) : Cu. Photoluminescent emission spectra of Li(2)SO(4) : Cu phosphor showed a very strong prominet peak at 387 nm in the indigo region due to 3d(9) 4 s(1) ↔ 3d(10) transition of the Cu(+) ion. The increase in peak intensity of the PL spectrum suggests that Cu(+) acts as the luminescence center in the present matrix.
authors.affiliation: Kamla Nehru College, Sakkardara Square, Nagpur-440 009, India.
authors.forename: S P
authors.initials: SP
authors.lastname: Puppalwar
authors.forename: S J
authors.initials: SJ
authors.lastname: Dhoble
authors.forename: Animesh
authors.initials: A
authors.lastname: Kumar
mesh_terms: D002414:Cations, Monovalent; D003300:Copper / Q000737:chemistry*; D018020:Lithium Compounds / Q000737:chemistry*; D049449:Luminescence; D033362:Powder Diffraction; D013057:Spectrum Analysis / Q000379:methods; D013431:Sulfates / Q000737:chemistry*
chemical_list: D002414:Cations, Monovalent; D018020:Lithium Compounds; D013431:Sulfates; D003300:Copper; C054097:lithium sulfate