TY - JOUR
T1 - New atomic-scale features in graphite surfaces treated in a dielectric barrier discharge plasma
AU - Solís-Fernández, Pablo
AU - Paredes, Juan I.
AU - Martínez-Alonso, Amelia
AU - Tascón, Juan M.D.
N1 - Funding Information:
P.S.-F. acknowledges receipt of an I3P pre-doctoral Contract from CSIC. Funding of this work by the Spanish MEC through projects CTQ2005-09105-CO4-02 and VEM2004-08576 is gratefully acknowledged. Financial support from CSIC (I3 Project No. 200680I198) is also acknowledged.
PY - 2008/8
Y1 - 2008/8
N2 - The effects of an air plasma generated by a dielectric barrier discharge (DBD) on highly oriented pyrolytic graphite (HOPG) have been investigated through scanning tunneling microscopy (STM), Raman and XPS spectroscopies. Three main types of nanometer/atomic scale features were identified by STM: (i) small bumps, attributed to surface atomic vacancies; (ii) smooth bumps, attributed to interstitial Ar or C atoms; and (iii) depressions not previously reported for graphite, and tentatively attributed to interstitial oxygen species. The evolution of the STM features suggests that the surface modification of HOPG by an air DBD plasma is dominated by physical processes (ion bombardment).
AB - The effects of an air plasma generated by a dielectric barrier discharge (DBD) on highly oriented pyrolytic graphite (HOPG) have been investigated through scanning tunneling microscopy (STM), Raman and XPS spectroscopies. Three main types of nanometer/atomic scale features were identified by STM: (i) small bumps, attributed to surface atomic vacancies; (ii) smooth bumps, attributed to interstitial Ar or C atoms; and (iii) depressions not previously reported for graphite, and tentatively attributed to interstitial oxygen species. The evolution of the STM features suggests that the surface modification of HOPG by an air DBD plasma is dominated by physical processes (ion bombardment).
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U2 - 10.1016/j.carbon.2008.05.021
DO - 10.1016/j.carbon.2008.05.021
M3 - Letter
AN - SCOPUS:47149106018
SN - 0008-6223
VL - 46
SP - 1364
EP - 1367
JO - Carbon
JF - Carbon
IS - 10
ER -