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Preparation and Characterization of Ternary Europium Nanorod Complexes with UV Excitation of the Characteristic Red Luminescence

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Abstract:

Rare-earth luminescent complex have been attracted increasing interest since they can emit fluorescence using near ultraviolet as excitation wavelength. Nanomaterials have potential applications in optical, electronic, magnetic fields due to their surface effects, volume effects, quantum size effects and macroscopic quantum tunnel effects. Combing the important properties of fluorescence and nanomaterial, the study of nanosized rare earth fluorescence complex is an interesting topic. In this paper, we synthesized ternary luminescence complex nanorods composed of europium (Eu (III))-trimesic acid (H3L)–1,10-phenanthroline (phen) using co-precipitation method in the polyvinylpyrrolidone (PVP) matrix. The elemental analyses of the samples were determined using an Inductively coupled plasma atomic emission spectroscopy (ICP-AES), and the chemical composition PVP/EuL(phen)0.2·5H2O was obtained. The X-ray diffraction (XRD) patterns showed that the resulting nano-sized complex is new substance different from that of two ligands. The transmission electron microscopy (TEM) image indicated that the nano-sized complex was nanorod with the average diameter of about 50 nm. Thermal analysis (TGA) result exhibited that the nano-sized complex is stable under 400 °C. UV–Vis diffuse reflectance spectra (DRS) showed that there is the maximum absorption at 260 nm. Photoluminescence analysis (PLA) indicated that the nano-sized complex emits Eu (III) characteristic red luminescence under ultraviolet excitation.

Keywords: 1,10-PHENANTHROLINE; EUROPIUM; LUMINESCENT COMPLEX; NANOROD; TRIMESIC ACID

Document Type: Research Article

DOI: https://doi.org/10.1166/jnn.2010.2910

Publication date: 2010-11-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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