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Title: Facile Template-Free Fabrication of the hollow sea cucumber-like TbF{sub 3} and luminescent properties

Graphical abstract: Hollow sea cucumber-like TbF{sub 3} has been prepared via a facile hydrothermal route. The possible growth mechanism and the luminescent properties of the as-prepared sample have been discussed. - Highlights: • TbF3 particles were prepared by a facile hydrothermal route. • TbF3 product show strong green emission. • This method may be more widely applicable in the design of other rare-earth compounds. - Abstract: Hollow sea cucumber-like TbF{sub 3} was successfully fabricated by a self-assembled hydrothermal method. The crystal structure, morphology and photoluminescence properties of the as-prepared TbF{sub 3} crystals were investigated. The results revealed that the as-prepared TbF{sub 3} sample has orthorhombic structure and composed of monodispersed 3D hollow sea cucumber-like particles. The possible formation mechanism for sea cucumber-like TbF{sub 3} is presented in detail. Additionally, the as-prepared sample possesses property of down-conversion photoluminescence. The excitation spectrum of TbF{sub 3} sample was obtained by monitoring the emission of Tb{sup 3+} at 545 nm was composed of the characteristics f–f transition lines within the Tb{sup 3+} 4f{sup 8} configuration. Under the UV light irradiation, the emission spectrum exhibited four obvious lines centered at 491, 545, 588, and 620 nm, which was corresponding to the {sup 5}D{sub 4} →more » {sup 7}F{sub J} (J = 6, 5, 4, 3) transitions of the Tb{sup 3+} ions in the TbF{sub 3} nanoparticles.« less
Authors:
 [1] ; ; ;  [1] ;  [2]
  1. College of Materials Science and Engineering, Shenyang University of Chemical Technology, Shenyang, 100142 (China)
  2. College of Applied Chemistry, Shenyang University of Chemical Technology, Shenyang, 100142 (China)
Publication Date:
OSTI Identifier:
22420676
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 60; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTRA; CRYSTAL GROWTH; CRYSTALS; EMISSION SPECTRA; EXCITATION; HYDROTHERMAL SYNTHESIS; IRRADIATION; MORPHOLOGY; NANOPARTICLES; NANOSTRUCTURES; ORTHORHOMBIC LATTICES; PHOTOLUMINESCENCE; TERBIUM FLUORIDES; TERBIUM IONS; ULTRAVIOLET RADIATION; X-RAY DIFFRACTION