Low-energy D{sup +} and H{sup +} ion irradiation effects on highly oriented pyrolytic graphite

Journal Article · Sat Dec 07 00:00:00 EST 2013 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4838156· OSTI ID:22217827

Kue Park, Jun; Won Lee, Kyu; Hee Han, Jun; Jung Kweon, Jin; Kim, Dowan; Eui Lee, Cheol ^[1]; Lim, Sun-Taek; Kim, Gon-Ho ^[2]; Noh, S. J.; Kim, H. S. ^[3]

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1. Department of Physics and Institute for Nano Science, Korea University, Seoul 136-713 (Korea, Republic of)
2. Department of Nuclear Engineering, Seoul National University, Seoul 151-744 (Korea, Republic of)
3. Department of Applied Physics, Dankook University, Yongin 448-701 (Korea, Republic of)

We have investigated the low-energy (100 eV) D{sup +} and H{sup +} ion irradiation effects on the structural and chemical properties of highly oriented pyrolytic graphite (HOPG). Structural disorder due to the ion irradiation was identified by the Raman spectroscopy, the D{sup +} irradiation giving rise to greater structural disorder than the H{sup +} irradiation. Only sp{sup 2} bonding was identified in the X-ray photoemission spectroscopy of the D{sup +}-irradiated HOPG, indicating no change in the surface chemical structure. The H{sup +} irradiation, on the other hand, gave rise to sp{sup 3} bonding and π−π{sup *} transition, the sp{sup 3} bonding increasing with increasing irradiation dose. It is thus shown that the chemical properties of the HOPG surface may be sensitively modified by the low-energy H{sup +} ion irradiation, but not by the low-energy D{sup +} ion irradiation.

• OSTI ID: 22217827
• Journal Information: Journal of Applied Physics, Vol. 114, Issue 21; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AUGMENTATION
BONDING
CHEMICAL BONDS
CHEMICAL PROPERTIES
DEUTERIUM IONS
EV RANGE
GRAPHITE
HYDROGEN IONS 1 PLUS
ION BEAMS
IRRADIATION
PHOTOEMISSION
RADIATION DOSES
RAMAN SPECTRA
RAMAN SPECTROSCOPY
SURFACES
X RADIATION
X-RAY PHOTOELECTRON SPECTROSCOPY