Combustion Synthesis of Eu3+-Activated Y2Hf7O17 Powders

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Abstract:

Eu3+ doped-Y2Hf7O17 nanopowders were synthesized by the chemical self-combustion method at low temperature. X-ray diffraction, transmission electron microscopy, and scanning electron microscopy were employed to analyze the phase composition and the characteristics of the nanopowders. The excitation and emission spectra were analyzed with a fluorescence photometer. Results show that nanoscale powders calcined at 800 °C have good luminescent properties. There are two peaks in the emission spectra. One is at 595 nm, and the other is at 614 nm. Analysis of X-ray diffraction and photoluminescence spectra reveals that Y2Hf7O17 is cubic phase. The sample doped with 14 mol% Eu3+ has the maximum luminescent intensity.

Keywords: COMBUSTION; NANO SCALE; SCINTILLATOR; Y2HF7O17:EU3+

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2010.2100

Publication date: March 1, 2010

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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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