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Green synthesis of selenium nanoparticles by excimer pulsed laser ablation in water

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Author(s): O. Van Overschelde | G. Guisbiers | R. Snyders

Journal: APL Materials
ISSN 2166-532X

Volume: 1;
Issue: 4;
Start page: 042114;
Date: 2013;
Original page

ABSTRACT
Pure selenium nanoparticles were successfully synthesized by Liquid Phase - Pulsed Laser Ablation (LP-PLA) in de-ionized water. Excimer laser (248 nm) operating at low fluence (F ∼ 1 J/cm2) was used to generate colloidal solutions of selenium nanoparticles. The obtained selenium nanoparticles were characterized by UV-visible spectroscopy, Raman spectroscopy, Dynamic Light Scattering, and Transmission Electron Microscopy. We describe the multi-modal size distributions generated and use the centrifugation method to isolate the smallest nanoparticles (∼60 nm in diameter).
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