abstract

• Terbium-doped gadolinium oxysulfide (Gd2O2S:Tb) nanoparticles were synthesized by hydrothermal precipitation of urea. On the reaction, were analyzed variables as the temperature of solutions, the reaction time and the stirring velocities as main factors in the crystal growth. WAXD TEM and FTIR analysis were used to characterize the Crystallographic phase, morphology and chemical vibrations of the materials. Moreover, the photoluminescent properties were evaluated as response at the UV light, obtaining the main emission at 544 nm produced by 5D4 → 7F5 transition of the Tb3 ions. Besides, we found that the host lattice and doped-ions concentration is essential to obtain a strong visible photoluminescence evaluated experimentally. © 2013 SPIE.
• Terbium-doped gadolinium oxysulfide (Gd2O2S:Tb) nanoparticles were synthesized by hydrothermal precipitation of urea. On the reaction, were analyzed variables as the temperature of solutions, the reaction time and the stirring velocities as main factors in the crystal growth. WAXD TEM and FTIR analysis were used to characterize the Crystallographic phase, morphology and chemical vibrations of the materials. Moreover, the photoluminescent properties were evaluated as response at the UV light, obtaining the main emission at 544 nm produced by 5D4 → 7F5 transition of the Tb3%2b ions. Besides, we found that the host lattice and doped-ions concentration is essential to obtain a strong visible photoluminescence evaluated experimentally. © 2013 SPIE.

authors

• Hernandez-Adame L.
• Medelln-Rodríguez F.
• Méndez-Blas A.
• Palestino Escobedo Alma Gabriela
• Vega-Acosta R.

publication date

• 2013-01-01

published in

• Proceedings of SPIE - The International Society for Optical Engineering  Proceedings

keywords

• Gd2O2S:Tb; Nanoparticles; Optical properties; Rare earth Crystallographic phase; FTIR analysis; Gadolinium oxysulfides; Hydrothermal precipitation; Optical characterization; Photo-luminescent properties; Stirring velocity; Visible photoluminescence; Characterization; Chemical analysis; Crystal growth; Nanoparticles; Optical properties; Precipitation (chemical); Rare earths; Synthesis (chemical); Urea; Terbium

Digital Object Identifier (DOI)

• 10.1117/12.2004659

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volume

• 8626