Local structure and near-infrared emission features of neodymium-based amine functionalized organic/inorganic hybrids
authors Goncalves, MC; Silva, NJO; Bermudez, VDZ; Ferreira, RAS; Carlos, LD; Dahmouche, K; Santilli, CV; Ostrovskii, D; Vilela, ICC; Craievich, AF
nationality International
journal JOURNAL OF PHYSICAL CHEMISTRY B
keywords ORGANIC-INORGANIC NANOCOMPOSITES; EU3+ IONS; POLY(ETHYLENE OXIDE); OPTICAL-PROPERTIES; POLYMER ELECTROLYTES; TRIVALENT CATIONS; ENERGY-TRANSFER; METAL SALTS; COMPLEXES; NANOHYBRIDS
abstract Nd3+-based organic/inorganic hybrids have potential application in the field of integrated optics. Attractive sol-gel derived di-urea and di-urethane cross-linked poly (oxyethylene) (POE)/siloxane hybrids (di-ureasils and di-urethanesils, respectively) doped with neodymium triflate (Nd(CF3SO3)(3)) were examined by Fourier transform mid-infrared (FT-IR), Raman (FT-Raman), Si-29 magic-angle spinning (MAS) nuclear magnetic resonance (NMR) and photoluminescence spectroscopies, and small-angle X-ray scattering (SAXS). The goals of this work were to determine which cation coordinating site of the host matrix (ether oxygen atoms or carbonyl oxygen atoms) is active in each of the materials analyzed, its influence on the nanostructure of the samples and its relation with the photoluminescence properties. The main conclusion derived from this study is that the hydrogen-bonded associations formed throughout the materials play a major role in the hybrids nanostructure and photoluminescence properties.
publisher AMER CHEMICAL SOC
issn 1520-6106
year published 2005
volume 109
issue 43
beginning page 20093
ending page 20104
digital object identifier (doi) 10.1021/jp052097n
web of science category Chemistry, Physical
subject category Chemistry
unique article identifier WOS:000232959800009
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journal analysis (jcr 2019):
journal impact factor 2.857
5 year journal impact factor 2.88
category normalized journal impact factor percentile 50.629
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