Photoluminescent layered lanthanide silicate nanoparticles
authors Ananias, D; Ferdov, S; Paz, FAA; Ferreira, RAS; Ferreira, A; Geraldes, CFGC; Carlos, LD; Lin, Z; Rocha, J
nationality International
journal CHEMISTRY OF MATERIALS
keywords BOND-VALENCE PARAMETERS; DIFFRACTION BEAM LINE; HYDROTHERMAL SYNTHESIS; DICHOTOMY METHOD; COORDINATION; PHOSPHONATES; PROGRAM; SERIES; ESRF; EU3+
abstract The first examples of nanoparticles of pure layered Ln(2)(SiO4H)(OH)(2)(H2O)Cl (where Ln = Eu, Gd, and Tb) and mixed microcrystalline layered lanthanide silicates containing different Eu/Gd and Tb/Gd ratios have been reported. The crystal structure of these silicates has been solved from synchrotron powder X-ray diffraction data. These materials display interesting and tuneable photoluminescence (PL) properties, such as energy transfer between different Ln(3+) centers, illustrated here with the pairs Eu3+/Gd3+ and Tb3+/Gd3+. The PL properties of the mixed EU3+/Gd3+ sample change upon F- for Cl- ion exchange, and this raises the possibility that this material may be exploited for sensing these ions.
publisher AMER CHEMICAL SOC
issn 0897-4756
year published 2008
volume 20
issue 1
beginning page 205
ending page 212
digital object identifier (doi) 10.1021/cm702524n
web of science category Chemistry, Physical; Materials Science, Multidisciplinary
subject category Chemistry; Materials Science
unique article identifier WOS:000252047600033
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journal analysis (jcr 2019):
journal impact factor 9.567
5 year journal impact factor 10.102
category normalized journal impact factor percentile 88.386
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