title: Insights into the discrepant luminescence for BaSiO3:Eu2+phosphors prepared by solid-state reaction and precipitation reaction methods.
abstract: Two synthesis routes, solid-state reaction and precipitation reaction, were employed to prepare BaSiO3:Eu2+phosphors in this study. Discrepancies in the luminescence green emission at 505 nm for the solid-state reaction method sample and in the yellow emission at 570 nm for the sample prepared by the precipitation reaction method, were observed respectively. A detail investigation about the discrepant luminescence of BaSiO3:Eu2+phosphors was performed by evaluation of X-ray diffraction (XRD), photoluminescence (PL)/photoluminescence excitation (PLE), decay time and thermal quenching properties. The results showed that the yellow emission was generated from the BaSiO3:Eu2+phosphor, while the green emission was ascribed to a small amount of Ba2SiO4:Eu2+compound that was present in the solid-state reaction sample. This work clarifies the luminescence properties of Eu2+ions in BaSiO3and Ba2SiO4hosts.
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, People's Republic of China.
authors.forename: Jiao
authors.initials: J
authors.lastname: Xu
authors.affiliation: China Academy of Civil Aviation Science and Technology, Beijing, People's Republic of China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, People's Republic of China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Chen
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, People's Republic of China.
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Mao
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, People's Republic of China.
authors.forename: Yanfang
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Tianjin Key Laboratory for Photoelectric Materials and Devices, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, People's Republic of China.
authors.forename: Dajian
authors.initials: D
authors.lastname: Wang
mesh_terms: D011232:Chemical Precipitation; D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D049408:Luminescent Agents / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D049408:Luminescent Agents; D005063:Europium
keywords: Ba2SiO4:Eu2+; BaSiO3:Eu2+; phosphors; photoluminescence