Article

Facile and rapid synthesis of highly luminescent nanoparticles via Pulsed Laser Ablation in Liquid

Université de Lyon, F-69000 Lyon, France. Université Lyon 1, F-69622 Villeurbanne, France.
Nanotechnology (Impact Factor: 3.82). 11/2009; 20(44):445605. DOI: 10.1088/0957-4484/20/44/445605
Source: PubMed

ABSTRACT

This paper demonstrates the usefulness of pulsed laser ablation in liquids as a fast screening synthesis method able to prepare even complex compositions at the nanoscale. Nanoparticles of Y2O3:Eu3+, Lu2O2S:Eu3+, Gd2SiO5:Ce3+, Lu3TaO7:Gd3+ and Tb3+ are successfully synthesized by pulsed laser ablation in liquids. The phase and stoichiometries of the original materials are preserved while the sizes are reduced down to 5-10 nm. The optical properties of the materials are also preserved but show some small variations and some additional structures which are attributed to the specificities of the nanoscale (internal pressure, inhomogeneous broadening, surface states, etc).

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    • "Laser ablation of Si-doped GaAs in water or ethanol gives nearly stoichiometric NPs which are surface passivated by a Ga-rich oxidized amorphous compound [62]. Laser ablation of doped sesquioxides, oxysulfides, silicates, and tantalates such as Y 2 O 3 :Eu 3+ , Lu 2 O 2 S: Eu 3+ , Gd 2 SiO 5 :Ce 3+ , Lu 3 TaO 7 :Gd 3+ , and Tb 3+ in water gives NPs with a mean diameter of roughly 7 nm which preserve the stoichiometry and the phase of the bulk material [63]. Similarly laser ablation of the doped oxides of Y 2 O 3 :Eu 3+ , Gd 2 O 3 :Eu 3+ , and Y 3 Al 5 O 12 :Ce 3+ in aqueous solution of 2-[2-(2-methoxyethoxy)ethoxy]acetic acid results in the coordination of the produced NPs by the carboxylate group (ÀCOO À ) of the molecule via the bridging bidentate mode which limits their size and narrows their size distribution, while the polyether chain of the molecule ensures their stability. "

    Full-text · Dataset · Feb 2016
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    • "Laser ablation of Si-doped GaAs in water or ethanol gives nearly stoichiometric NPs which are surface passivated by a Ga-rich oxidized amorphous compound [62]. Laser ablation of doped sesquioxides, oxysulfides, silicates, and tantalates such as Y 2 O 3 :Eu 3+ , Lu 2 O 2 S: Eu 3+ , Gd 2 SiO 5 :Ce 3+ , Lu 3 TaO 7 :Gd 3+ , and Tb 3+ in water gives NPs with a mean diameter of roughly 7 nm which preserve the stoichiometry and the phase of the bulk material [63]. Similarly laser ablation of the doped oxides of Y 2 O 3 :Eu 3+ , Gd 2 O 3 :Eu 3+ , and Y 3 Al 5 O 12 :Ce 3+ in aqueous solution of 2-[2-(2-methoxyethoxy)ethoxy]acetic acid results in the coordination of the produced NPs by the carboxylate group (ÀCOO À ) of the molecule via the bridging bidentate mode which limits their size and narrows their size distribution, while the polyether chain of the molecule ensures their stability. "
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    • "The morphology and size of the inorganic functional materials exhibit a great influence on their optical, magnetic and electrochemical properties1234. In case of phosphors, different morphologies and sizes may introduce various dispersibility, surface states, as well as emission wavelength. Thus, the preparation of phosphors with the controllable morphology and size is of great importance to develop future lighting or display devices. "
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