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.
Original language | English |
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Pages (from-to) | 580-584 |
Number of pages | 5 |
Journal | Journal of Crystal Growth |
Volume | 311 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2009 Jan 15 |
Keywords
- A1. Crystal morphology
- A1. X-ray diffraction
- B1. Nanomaterials
- B1. Rare earth compounds
- B1. Yttrium compounds
- B2. Phosphors
ASJC Scopus subject areas
- Condensed Matter Physics
- Inorganic Chemistry
- Materials Chemistry