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Surface Oxidation of Si (111) By High Purity Ozone and Negative Ions Produced by Rydberg Electron Transfer

Published online by Cambridge University Press:  10 February 2011

H. Nonaka
Affiliation:
Electrotechnical Laboratory, 1‐1‐4 Umezono, Tsukuba, Ibaraki 305 Japan *e8610@etl.go.jp
A. Kurokawa
Affiliation:
Electrotechnical Laboratory, 1‐1‐4 Umezono, Tsukuba, Ibaraki 305 Japan
K. Nakamura
Affiliation:
Electrotechnical Laboratory, 1‐1‐4 Umezono, Tsukuba, Ibaraki 305 Japan
S. Ichimura
Affiliation:
Electrotechnical Laboratory, 1‐1‐4 Umezono, Tsukuba, Ibaraki 305 Japan
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Abstract

The sub‐initial oxidation of Si (111) surface by a high‐flux pure ozone was investigated using X‐ray photoelectron spectroscopy. In addition to the advantage of the pure ozone which can efficiently oxidize the Si surface at room temperature, the high‐flux ozone was found to further enhance the oxidation. The possibility of producing negative ions of oxidizing gases using Rydberg electron transfer was also investigated.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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References

1 1Kurokawa, A. and Ichimura, S., Jpn. J. Appl. Phys. 34, L1606 (1995).Google Scholar
2 2Nakamura, K., Kurokawa, A. and Ichimura, S., Surf. Interface Anal., in press.Google Scholar
3 3Nakamura, K., Kurokawa, A., and Ichimura, S., J. Vac. Sci. Technol. submitted.Google Scholar
4 Kurokawa, A. and Ichimura, S., Appl. Surf. Sci., 100/101, 436 (1996)Google Scholar
5 Hosokawa, S. and Ichimura, S., Rev. Sci. instrum. 62, 1614 (1991).Google Scholar
6 6Dimicoli, I. and Botter, R., J. Chem. Phys. 74, 2346 (1981).Google Scholar
7 7Ervin, K.M., Ho, J., and Lineberger, W.C., J. Phys. Chem., 92, 5405 (1988).Google Scholar
8 8According to Stockdale, J.A.D., Compton, R.N., Hurst, G.S., and Reinhardt, P.W., J. Chem. Phys. 50, 2176 (1969), the dissociative attachment of electron to NO2 occurs only when the electron energy is above 1.35 eV. If this is the case, the O observed in our system may have been produced by collisions between NO2 and electrons emitted in the three‐photon ionization of Cs atoms, whose energy is greater than 1.92 eV for the ionization via an electron state higher than 23d. Google Scholar
9 9Novick, S.E., Engelking, P.C., Jones, P.L., Futrell, J.H., and Lineberger, W.C., J. Phys. Chem., 70, 2652 (1979).Google Scholar