Preparation of metal nanoparticles by femtosecond laser ablation

Nova Biotechnologica et Chimica

Teplicky Tibor¹  Chorvatova Alzbeta Marcek¹  Michalka Miroslav²  Chorvat Dusan² 

[1] Faculty of Natural Sciences, University of Ss. Cyril and Methodius in Trnava, Nám. J. Herdu 2, Trnava, SK-917 01, Slovakia;International Laser Centre, Ilkovicova 3, Bratislava, SK-84104, Slovakia;

关键词: Chlorella sp;    Cobalt;    Colloids;    Laser ablation;    Nanoparticles;    Nickel;    Zinc;   

DOI  :  10.2478/nbec-2018-0004

来源: DOAJ

【 摘 要 】

Nanoparticles (NPs) proved to have numerous applications in various fields, including biomedicine and environmental sciences. In this work, we designed and created an apparatus for fabrication of metal NPs directly in liquids initiated by femtosecond laser pulses. The laser parameters leading to ~10 μJ/pulse energy and 0.1 GW peak power resulted in predominantly spherical particles with the sizes varying from <10 nm to ~100 nm in diameter. NPs generated from Cobalt and Zinc targets were smaller in order of magnitude compared to that of Nickel. The fabricated NPs were characterized by scanning electron microscopy, while spectroscopic properties were investigated by absorption spectroscopy and spectrally resolved fluorescence imaging. We also tested the possible interaction of the created NPs with living algae for their potential use for environmental research. Employing such ultrashort laser opens route to provide on-demand production of NP's in-situ at even factory environment.

【 授权许可】

Unknown