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Study on Luminescence Properties of Eu2+ in BaAl12O19 Matrix

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Eu2+-doped BaAl12O19 phosphors were prepared using the sol–gel method, and their structure and luminescence properties were characterized by X-ray diffraction (XRD) analysis and fluorescence spectrometry. The results showed that a single hexagonal BaAl12O19 crystal structure was synthesized and the emission spectrum of BaAl12O19:Eu exhibited a broad asymmetric band from 375 to 600 nm, which was composed of three emission peaks at 438, 462, and 511 nm. The effects of crystallization temperature, Eu2+ concentration, and Al3+ content on the occupation of Eu2+ in three crystallographic positions were investigated. The emission intensity of 438 nm increased with increasing crystallization temperature, while the emission intensity of 462 and 511 nm increased with the increase of Eu2+ concentration and Al3+ content.
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Document Type: Research Article

Publication date: 2010-03-01

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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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