title: Self-assembled 3D sphere-like SrMoO4 and SrMoO4:Ln3+ (Ln=Eu, Sm, Tb, Dy) microarchitectures: facile sonochemical synthesis and optical properties.
abstract: Three-dimensional (3D) well-defined SrMoO4 and SrMoO4:Ln(3+) (Ln=Eu, Sm, Tb, Dy) hierarchical structures of obvious sphere-like shape have been successfully synthesized using a large-scale and facile sonochemical route without using any catalysts or templates. X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), energy dispersive X-ray spectroscopy (EDS), and photoluminescence (PL) spectra were used to characterize the samples. The intrinsic structural feature of SrMoO4 and external factor, namely the ultrasonic time and the pH value, are responsible for the ultimate shape evolutions of the product. The possible formation mechanism for the product is presented. Additionally, the PL properties of SrMoO4 and SrMoO4:Ln(3+) (Ln=Eu, Sm, Tb, Dy) hierarchical structures were investigated in detail. The Ln(3+) ions doped SrMoO4 samples exhibit respective bright red-orange, yellow, green and white light of Eu(3+), Sm(3+), Tb(3+) and Dy(3+) under ultraviolet excitation, and have potential application in the field of color display. Simultaneously, this novel and efficient pathway could open new opportunities for further investigating about the properties of molybdate materials.
authors.affiliation: College of Chemistry, Jilin University, Changchun 130026, PR China.
authors.forename: Junjun
authors.initials: J
authors.lastname: Zhang
authors.affiliation: College of Chemistry, Jilin University, Changchun 130026, PR China.
authors.forename: Ruiqing
authors.initials: R
authors.lastname: Li
authors.affiliation: College of Chemistry, Jilin University, Changchun 130026, PR China.
authors.forename: Lu
authors.initials: L
authors.lastname: Liu
authors.affiliation: College of Chemistry, Jilin University, Changchun 130026, PR China.
authors.forename: Linlin
authors.initials: L
authors.lastname: Li
authors.affiliation: Teaching Center of Basic Courses, Jilin University, Changchun 130062, PR China. Electronic address: zoulianchun@126.com.
authors.forename: Lianchun
authors.initials: L
authors.lastname: Zou
authors.affiliation: College of Chemistry, Jilin University, Changchun 130026, PR China. Electronic address: gansc@jlu.edu.cn.
authors.forename: Shucai
authors.initials: S
authors.lastname: Gan
authors.affiliation: College of Chemistry, Jilin University, Changchun 130026, PR China.
authors.forename: Guijuan
authors.initials: G
authors.lastname: Ji
keywords: Energy transfer; Luminescence; Morphology; Sonochemistry; SrMoO(4)