Raman spectroscopy of carbon nano-particles synthesized by laser ablation of graphite in water

J. F. Cardenas, T. Cadenbach, Z. B. Zhang, C. Costa-Vera, A. Debut, A. V. Vaca, S. L. Zhang, J. L. Paz

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

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 μm) graphite particles removed from the surface are essentially unmodified (in structure and topology) by the laser as confirmed by Raman analysis.

Original languageEnglish
Pages (from-to)71-75
Number of pages5
JournalRevista Mexicana de Fisica
Volume63
Issue number1
StatePublished - 2017
Externally publishedYes

Keywords

  • Atomic force microscopy
  • Carbon nanoparticle
  • High resolution electron microscopy
  • Laser ablation
  • Raman spectroscopy

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