Two different species of deuterium implanted into a pyrolytic graphite observed by XPS--SIMS
Trapped states of deuterium implanted into a pyrolytic graphite with 5 keV were investigated by means of the x-ray photoelectron spectroscopy and the secondary ion mass spectrometry. Chemical shift and broadening of C 1s peak were observed in the XPS spectra due to deuterium-ion implantation at room temperature. The shift and the broadening increased with the deuterium fluence to reach constant values. In the SIMS spectra, CD/sup -/ and C/sub 2/D/sup -/ peaks appeared due to the deuterium implantation. The intensity of the CD/sup -/ peak increased with the fluence to reach a constant value, whereas that of the C/sub 2/D/sup -/ peak passed through a maximum to decrease to a constant value. A linear relation was observed between the chemical shift and the CD/sup -/ peak. The chemical shift and the CD/sup -/ peak disappeared after annealing the sample at 600 /sup 0/C for 5 min, whereas the broadening of the C 1s peak and the C/sub 2/D/sup -/ peak disappeared after annealing the sample at 900 /sup 0/C for 5 min. On the basis of these observations, it is concluded that at least two different species of the deuterium are formed in the graphite due to the deuterium implantation.
- Research Organization:
- Radio-isotope Laboratory, Toyama University, Gofuku 3190, Toyama 930, Japan
- OSTI ID:
- 5609254
- Journal Information:
- J. Vac. Sci. Technol., A; (United States), Journal Name: J. Vac. Sci. Technol., A; (United States) Vol. 1:3; ISSN JVTAD
- Country of Publication:
- United States
- Language:
- English
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360605* -- Materials-- Radiation Effects
ANNEALING
ARGON IONS
BINDING ENERGY
CARBON
CARBON COMPOUNDS
CHARGED PARTICLES
CHEMICAL COMPOSITION
CHEMICAL SHIFT
DEUTERIDES
DEUTERIUM COMPOUNDS
DEUTERIUM IONS
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
ELEMENTAL MINERALS
ELEMENTS
ENERGY
ENERGY LEVELS
ENERGY RANGE
GRAPHITE
HEAT TREATMENTS
HYDROGEN COMPOUNDS
ION IMPLANTATION
IONIZING RADIATIONS
IONS
KEV RANGE
KEV RANGE 01-10
LINE BROADENING
MASS SPECTRA
MASS SPECTROSCOPY
MINERALS
MOLECULAR IONS
NONMETALS
PHOTOELECTRON SPECTROSCOPY
RADIATIONS
S STATES
SPECTRA
SPECTROSCOPY
TRAPS
VERY HIGH TEMPERATURE
X RADIATION