title: Sr₂ZnWO₆:Eu³⁺, Bi³⁺, Li⁺: a potential white-emitting phosphor for near-ultraviolet white light-emitting diodes.
abstract: A series of Sr2ZnWO6 phosphors co-doped with Eu(3+), Bi(3+) and Li(+) were prepared using the Pechini method. The samples were tested using X-ray diffraction and luminescence spectroscopy. The results show that the samples can be effectively excited by near-ultraviolet (UV) and UV light. The introduction of Bi(3+) and Li(+) significantly enhances the fluorescence emission of Sr2ZnWO6 :Eu(3+) and changes the light emitted by the phosphors from bluish-green to white. When excited at 371 nm, Sr(2-x-z)Zn(1-y)WO6:xEu(3+), yBi(3+), zLi(+) (x = 0.05, y = 0.05, z = 0.05, 0.1 and 0.15) samples emit high-performance white light. Intense red-orange emission is also observed when excited by UV light. The obtained phosphor is a potential white-emitting phosphor that could meet the needs of excitation sources with near-UV chips. In addition, this phosphor might have promising application as a red-orange emitting phosphor for white light-emitting diodes based on UV light-emitting diodes.
authors: Department of Applied chemistry, Institute of chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, People's Republic of China.
authors: Yuanyuan
authors: Y
authors: Ma
authors: Department of Applied chemistry, Institute of chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, People's Republic of China.
authors: Weiguang
authors: W
authors: Ran
authors: Department of Applied chemistry, Institute of chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, People's Republic of China.
authors: Weina
authors: W
authors: Li
authors: Department of Applied chemistry, Institute of chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, People's Republic of China.
authors: Chunyan
authors: C
authors: Ren
authors: Department of Applied chemistry, Institute of chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, People's Republic of China.
authors: Haiyan
authors: H
authors: Jiang
authors: Department of Applied chemistry, Institute of chemistry and Pharmacy, Qingdao Agricultural University, Qingdao, People's Republic of China.
authors: Jinsheng
authors: J
authors: Shi
mesh_terms: D001729:Bismuth / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D008027:Light; D008094:Lithium / Q000737:chemistry*; D049408:Luminescent Agents / Q000737:chemistry*; D008163:Luminescent Measurements; D013324:Strontium / Q000737:chemistry*; D014414:Tungsten / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry*
chemical_list: D049408:Luminescent Agents; D005063:Europium; D008094:Lithium; D015032:Zinc; D001729:Bismuth; D014414:Tungsten; D013324:Strontium
keywords: Pechini method; photoluminescence; tungstate; white light