Hostname: page-component-7bb8b95d7b-cx56b Total loading time: 0 Render date: 2024-10-04T08:14:57.295Z Has data issue: false hasContentIssue false

Hyperthermal H Atom Reactions on D/Si(100)

Published online by Cambridge University Press:  21 February 2011

Steven A. Buntin*
Affiliation:
National institute of Standards and Technology Gaithersburg, MD 20899
Get access

Abstract

A photolytic source of H atoms is used to probe abstraction and adsorption reactions on the D/Si(100) monodeuteride surface. Surface H and D coverages are determined for H atom exposures, with incident average kinetic energies of 1.0 and 2.8 eV. the D atom depletion probability per incident H atom is 0.3±0.2 for both kinetic energies, and is likely due to abstraction. these results, together with previous studies, indicate that the rates of depletion of surface D and the uptake of H are nominally independent of H atom kinetic energy over the range of about 0.3 to nearly 3 eV.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Golub, M.A. and Wydeven, T., Polymer Degrad. and Stab. 22, 325 (1988).Google Scholar
2 Miyauchi, E., Crit. Rev. Sol. State. Matl. Sci. 17, 107 (1991).Google Scholar
3 Imai, S., lizuka, T., Sugiura, O. and Matsumura, M., Thin Solid Films 225, 168 (1993); S.M. Bedair, J. Vac. Sci. Technol. B 12, 179 (1994).Google Scholar
4 Yates, J.T. Jr., Cheng, C.C., Gao, Q., Colaianni, M.L. and Choyke, WJ., Thin Solid Films 225, 150 (1993) and References therein.Google Scholar
5 Koleske, D.D. and Gates, S.M., J. Chem. Phys. 99, 8218 (1993).Google Scholar
6 Koleske, D.D., Gates, S.M. and Schultz, J.A., J. Chem. Phys. 99, 5619 (1993); D.D. Koleske, S.M. Gates and B. Jackson, 101, 3301 (1994)..Google Scholar
7 Sinniah, K., Sherman, M.G., Lewis, L.B., Weinberg, W.H., Yates, J.T. Jr., and Janda, K.C., J. Chem. Phys. 92, 5700 (1990).Google Scholar
8 Wise, M.L., Koehler, B.G., Gupta, P., Coon, P.A. and George, S.M., Surf. Sci. 258, 166 (1991); C.C. Cheng and J.T. Yates, Jr., Phys. Rev. B 43, 4041 (1991).Google Scholar
9 Gentry, W.R. and Giese, C.F., Rev. Sci. INstrum. 49, 595 (1978).Google Scholar
10 G.van, N.A. Veen, Mohamed, K.A., Baller, T. and de Vries, A.E., Chem. Phys. 80, 113 (1983).Google Scholar
11 Buntin, S.A. (to be submitted).Google Scholar
12 Kolasinski, K.W., hit. J. Mod. Phys. B (in press) and References therein.Google Scholar
13 Dobbs, K.D. and DJ. Doren, J. amer. Chem. Soc. 115, 3731 (1993).Google Scholar
14 Dobbs, K.D. and Dixon, D.A., J. Phys. Chem. 98, 5290 (1994).Google Scholar