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The luminescence properties of nanocrystalline phosphors Mg2SiO4:Eu3+

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, , Citation A Y Kolomytsev et al 2017 J. Phys.: Conf. Ser. 929 012068 DOI 10.1088/1742-6596/929/1/012068

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kau210296@mail.ru

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1 Physics Department, Saint Petersburg State University, 3 Ulyanovskaya Street, Peterhof, Saint Petersburg, Russia

2 Scientific and Technological Institute of Optical Material Science, VNTs S. I. Vavilov State Optical Institute, 36-1 Babushkina, Saint Petersburg, Russia

3 Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii prospekt, Peterhof, Saint Petersburg, Russia

4 Centre for Optical and Laser Materials Research, Saint Petersburg State University

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1742-6596/929/1/012068

Abstract

Nanocrystalline Eu3+-doped Mg2SiO4 powders were prepared with combined Pechini-solid phase synthesis. The structural properties were investigated with XRD, SEM and Raman spectroscopy. XRD pattern indicated that Mg2SiO4:Eu3+ were obtained with formation of other phase: MgO. Raman spectrum revealed good homogeneity and crystallinity of synthesized nanopowders. The luminescence properties were studied with measurement of excitation and emission spectra and decay curves. The effect of Eu3+ concentration on 5D0 level lifetime was studied. Most probably, the observed shortening of 5D0 level lifetime with Eu3+ concentration is caused by increase of nonradiative process probability.

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10.1088/1742-6596/929/1/012068