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Search: WFRF:(Cadenbach T.)

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1.
  • Cardenas, J. F., et al. (author)
  • Raman spectroscopy of carbon nano-particles synthesized by laser ablation of graphite in water
  • 2017
  • In: Revista mexicana de física. - 0035-001X. ; 63:1, s. 71-75
  • Journal article (peer-reviewed)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 mu m) graphite particles removed from the surface are essentially unmodified (in structure and topology) by the laser as confirmed by Raman analysis.
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2.
  • Cardenas, J. F., et al. (author)
  • Structure and Mesoscopic Characterization of Laser Ablated Carbon Nanoparticles in Water by Raman Scattering
  • 2016
  • In: Optical Micro- And Nanometrology VI. - : SPIE. - 9781510601352
  • Conference paper (peer-reviewed)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 and characterized by Raman spectroscopy and atomic force microscopy. The characteristic sizes of CNPs in the supernantant are in the range of 1-2 nm and 10-50 nm with structures corresponding to amorphous and sp(2)-carbon, respectively. Raman spectra of the CNPs from the supernatant reveal a background as a consequence of photoluminescence. The absence of a distinct Raman peak associated with hydrogenated amorphous carbon (a-C:H) suggests an other source for the photolominescence than a-C:H. Large (10-100 mu m) CNPs removed from the surface are unmodified (in structure and topology) by the laser as confirmed by Raman analysis.
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  • Result 1-2 of 2
Type of publication
conference paper (1)
journal article (1)
Type of content
peer-reviewed (2)
Author/Editor
Cardenas, J. F. (2)
Cadenbach, T. (2)
Costa-Vera, C. (2)
Paz, J. L. (2)
Zhang, Shi-Li (1)
Zhang, Zhibin (1)
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Zhang, Z.-B. (1)
Debut, A. (1)
Vaca, A. V. (1)
Zhang, S-L (1)
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University
Uppsala University (2)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (2)
Engineering and Technology (1)

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