title: Luminescent properties of sol-gel processed red-emitting phosphor Ca0.6 Sr0.4-1.5x-0.5y Mo0.4  W0.6 O4:Eux Liy.
abstract: A series of red-emitting phosphors Ca0.6Sr(0.4-1.5x-0.5y)Mo0.4W0.6O4:Eux Liy (x = 0.02-0.12, y = 0-0.12) has been synthesized by a sol-gel method. The effects of calcining temperature, concentrations of Li(+) and Eu(3+) , and compensation ions on the luminescent properties were investigated. X-ray diffraction and scanning electron microscopic results showed that as-prepared phosphors were of single phase with several microns. The Li(+) compensated compositions showed remarkably intense red emission at 619 nm. The emission intensity of the series reached maximum for compositions at x = 0.08 and y = 0.08 when the calcining temperature was 900 °C.
authors.affiliation: School of Science, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Li
authors.affiliation: School of Science, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
authors.forename: Huidong
authors.initials: H
authors.lastname: Xie
authors.affiliation: School of Science, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
authors.forename: Haihong
authors.initials: H
authors.lastname: Xi
authors.affiliation: School of Science, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
authors.forename: Fangfang
authors.initials: F
authors.lastname: Dang
authors.affiliation: Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
authors.forename: Xiaochang
authors.initials: X
authors.lastname: Wang
mesh_terms: D017610:Calcium Compounds / Q000737:chemistry; D005063:Europium / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D049408:Luminescent Agents / Q000737:chemistry*; D008163:Luminescent Measurements; D008855:Microscopy, Electron, Scanning; D008982:Molybdenum / Q000737:chemistry; D010087:Oxides / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D017610:Calcium Compounds; D049408:Luminescent Agents; D010087:Oxides; D005063:Europium; D008982:Molybdenum; D008094:Lithium; C016538:lime
keywords: LED; luminescence; phosphors