Solvothermal synthesis, controlled morphology and optical properties of Y2O3:Eu3+ nanocrystals

M. K. Devaraju; Shu Yin; Tsugio Sato

doi:10.1016/j.jcrysgro.2008.09.139

Solvothermal synthesis, controlled morphology and optical properties of Y₂O₃:Eu³⁺ nanocrystals

M. K. Devaraju, Shu Yin, Tsugio Sato

Research output: Contribution to journal › Article › peer-review

52 Citations (Scopus)

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
Pages (from-to)	580-584
Number of pages	5
Journal	Journal of Crystal Growth
Volume	311
Issue number	3
DOIs	https://doi.org/10.1016/j.jcrysgro.2008.09.139
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

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10.1016/j.jcrysgro.2008.09.139

Cite this

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title = "Solvothermal synthesis, controlled morphology and optical properties of Y2O3:Eu3+ nanocrystals",

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.",

keywords = "A1. Crystal morphology, A1. X-ray diffraction, B1. Nanomaterials, B1. Rare earth compounds, B1. Yttrium compounds, B2. Phosphors",

author = "Devaraju, {M. K.} and Shu Yin and Tsugio Sato",

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AU - Devaraju, M. K.

AU - Yin, Shu

AU - Sato, Tsugio

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N2 - 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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KW - A1. X-ray diffraction

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KW - B2. Phosphors

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