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The f–f Emission of Pr3+ Ion as an Optical Probe for the Structural Properties of YAG Nanoceramics

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Abstract:

Transparent Pr-doped YAG nanoceramics composed of grains with an average size of about 42 nm, were fabricated with the Low Temperature High Pressure (LTHP) sintering technique using the corresponding nanopowders as the starting materials. The structure of the nanoceramics was analyzed by X-ray diffraction (XRD). The effect of the sintering conditions on the structural properties is discussed on the basis of the changes of the spectroscopic properties of Pr3+ ions. In particular, the intensities and decays of the emission transitions originating from the 3P0 and 1D2 levels are investigated and correlated with structural properties of the material, such as microstrains produced by the high-pressure process.

Keywords: NANOCERAMICS; NANOCRYSTALS; PRASEODYMIUM; TRANSPARENT CERAMICS

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2009.1464

Publication date: November 1, 2009

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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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