Solvothermal synthesis, controlled morphology and optical properties of Y2O3:EU3+ nanocrystals
Date
2009
Authors
Devaraju, M.K.
Yin, S.
Sato, T.
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Journal article
Citation
Journal of Crystal Growth, 2009; 311(3):580-584
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Abstract
Y2O3:Eu luminescent nanoparticles were prepared by solvothermal route under supercritical conditions (350–400 °C) using aqueous yttrium chloride/europium chloride solution, methanol, NaOH aqueous solution, urea, 1-octadecene and oleic acid followed by calcination at 800 and 1000 °C. The particles exhibited sphere and rod-shaped morphology with diameter size ranging 20–40 nm. The samples before calcinations showed broad X-ray diffraction (XRD) peaks corresponding to YOCl, Y2(CO3)3·2H2O and Y2O3 and were converted to single-phase Y2O3 after calcinations above 800 °C. The Y2O3:Eu nanoparticles with sphere morphology exhibited stronger luminescence intensity than rod-shaped particles. The result was compared with reference sample prepared via conventional co-precipitation–calcination method.
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Data source: Supplementary material, https://doi.org/10.1016/j.jcrysgro.2008.09.139
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Copyright 2008 Elsevier BV