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Raman spectroscopy of carbon nano-particles synthesized by laser ablation of graphite in water
Escuela Politec Nacl, Dept Fis, Apdo 17-12-866,Ladron de Guevara E11-253, Quito, Ecuador..
Escuela Politec Nacl, Dept Fis, Apdo 17-12-866,Ladron de Guevara E11-253, Quito, Ecuador..
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
Escuela Politec Nacl, Dept Fis, Apdo 17-12-866,Ladron de Guevara E11-253, Quito, Ecuador.;USFQ, Grp Ecuatoriano Estudio Expt & Teor Nanosistemas, Diego Robles & Via Interocean,N104-E, Quito, Ecuador..
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2017 (English)In: Revista mexicana de física, ISSN 0035-001X, Vol. 63, no 1, 71-75 p.Article in journal (Refereed) Published
Abstract [en]

Carbon nanoparticles (CNPs) have been synthesized by laser ablation of polycrystalline graphite in water using a pulsed Nd:YAG laser (1064 nm) with a width of 8 ns. Structural and mesoscopic characterization of the CNPs in the supernatant by Raman spectroscopy provide evidence for the presence of mainly two ranges of particle sizes: 1-5 nm and 10-50 nm corresponding to amorphous carbon and graphite NPs, respectively. These results are corroborated by complementary characterization using atomic force microscopy (AFM) and transmission electron microscopy (TEM). In addition, large (10-100 mu m) graphite particles removed from the surface are essentially unmodified (in structure and topology) by the laser as confirmed by Raman analysis.

Place, publisher, year, edition, pages
2017. Vol. 63, no 1, 71-75 p.
Keyword [en]
Raman spectroscopy, carbon nanoparticle, laser ablation, high resolution electron microscopy, atomic force microscopy
National Category
Physical Sciences Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:uu:diva-316132ISI: 000392362500011OAI: oai:DiVA.org:uu-316132DiVA: diva2:1078403
Available from: 2017-03-03 Created: 2017-03-03 Last updated: 2017-03-03Bibliographically approved

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