Study of Chromium-Doped Diamond-Like Carbon by Z-Contrast Imaging and Electron Energy Loss Spectroscopy

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Metal-doped diamond-like carbon films were produced for the purpose of an electrochemical nano-electrode. In this study we use Z-contrast scanning transmission electron microscopy to directly observe metal cluster formation and distributions within the chromium-doped carbon films. At low doping ({approximately}6at%Cr), Cr is uniformly distributed; at high doping ({approximately}12at%Cr), Cr-rich clusters are formed. Using electron energy loss spectroscopy, we find that the Cr clusters tend to be metallic-like at low doping levels and carbide-like at high doping levels according to the Cr L, white line ratios. The carbon is more diamond-like at low doping and more graphite/carbide like at high doping ... continued below

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Fax, X.; Dickey, E.C. & Pennycook, S.J. November 29, 1999.

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Metal-doped diamond-like carbon films were produced for the purpose of an electrochemical nano-electrode. In this study we use Z-contrast scanning transmission electron microscopy to directly observe metal cluster formation and distributions within the chromium-doped carbon films. At low doping ({approximately}6at%Cr), Cr is uniformly distributed; at high doping ({approximately}12at%Cr), Cr-rich clusters are formed. Using electron energy loss spectroscopy, we find that the Cr clusters tend to be metallic-like at low doping levels and carbide-like at high doping levels according to the Cr L, white line ratios. The carbon is more diamond-like at low doping and more graphite/carbide like at high doping according to the sp1/sp3 electron percentage measurements.

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OSTI as DE00751482

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  • Materials Research Society Fall Meeting, Boston, MA (US), 11/29/1999--12/03/1999

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  • Report No.: ORNL/CP-105679
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 751482
  • Archival Resource Key: ark:/67531/metadc704096

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  • November 29, 1999

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  • Sept. 12, 2015, 6:31 a.m.

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  • Jan. 21, 2016, 12:38 p.m.

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Fax, X.; Dickey, E.C. & Pennycook, S.J. Study of Chromium-Doped Diamond-Like Carbon by Z-Contrast Imaging and Electron Energy Loss Spectroscopy, article, November 29, 1999; Tennessee. (digital.library.unt.edu/ark:/67531/metadc704096/: accessed September 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.