title: Photoluminescence and thermoluminescence characteristics of Sr3 B2 O6 :Eu(2+) yellow phosphor.
abstract: Sr3 B2 O6 :Eu(2+) yellow phosphor was prepared by the combustion method. The crystalline structure, photoluminescence and thermoluminescence properties of Sr3 B2 O6 :Eu(2+) were investigated extensively. The X-ray diffraction result indicates that the Sr3 B2 O6 :Eu(2+) phosphor exhibited a rhombohedral crystal structure. The emission spectra under a 435 nm excited wavelength showed an intense broad band peaking at 574 nm, which corresponds to the 4f(6) 5d(1) → 4f(7) transition of Eu(2+) ion. There were two different sites of Sr replaced by Eu in host lattice. The concentration quenching process between Eu(2+) ions is determined and the corresponding concentration quenching mechanism was verified as dipole-quadrupole interaction. The glow curve under 3 Gy β- ray irradiation had the glow peak at 160°C and the average activation energy was defined as about 0.98 eV. Copyright © 2015 John Wiley & Sons, Ltd.
authors.affiliation: Department of Natural Science, Duy Tan University, K7/25 Quang Trung, Danang, Vietnam.
authors.forename: Tuyen
authors.initials: T
authors.lastname: Ho Van
authors.affiliation: Department of Physics, University of Sciences, Hue University, 77 Nguyen Hue, Hue, Vietnam.
authors.forename: Son
authors.initials: S
authors.lastname: Nguyen Manh
authors.affiliation: Institute of Research and Development, Duy Tan University, K7/25 Quang Trung, Danang, Vietnam.
authors.forename: Quang
authors.initials: Q
authors.lastname: Vu Xuan
authors.affiliation: Institute of Research and Development, Duy Tan University, K7/25 Quang Trung, Danang, Vietnam.
authors.forename: Sengthong
authors.initials: S
authors.lastname: Bounyavong
mesh_terms: D001895:Boron / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D049408:Luminescent Agents / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D055668:Photochemical Processes; D013324:Strontium / Q000737:chemistry*; D013696:Temperature
chemical_list: D049408:Luminescent Agents; D005063:Europium; D001895:Boron; D010100:Oxygen; D013324:Strontium
keywords: Sr3B2O6; combustion method; concentration quenching; europium; thermoluminescence