Hostname: page-component-76fb5796d-x4r87 Total loading time: 0 Render date: 2024-04-26T12:43:19.605Z Has data issue: false hasContentIssue false
  • English
  • Français

Deuteron Magnetic Resonance and Infrared Absorption Studies of Structure and Dynamics in Amorphous Hydrogenated Carbon and Carbon Nitride

Published online by Cambridge University Press:  22 February 2011

Shu-Han Lin ,
Bernard J. Feldman ,
J. R. Bodart ,
V. P. Bork ,
M. J. Kernan ,
P. A. Fedders  and
R. E. Norberg
Shu-Han Lin
Affiliation:
Department of Physics and Center for Molecular Electronics, University of Missouri, St. Louis, MO 63121
Bernard J. Feldman
Affiliation:
Department of Physics and Center for Molecular Electronics, University of Missouri, St. Louis, MO 63121
J. R. Bodart
Affiliation:
Department of Physics, Washington University, St. Louis, MO 63130
V. P. Bork
Affiliation:
Department of Physics, Washington University, St. Louis, MO 63130
M. J. Kernan
Affiliation:
Department of Physics, Washington University, St. Louis, MO 63130
P. A. Fedders
Affiliation:
Department of Physics, Washington University, St. Louis, MO 63130
R. E. Norberg
Affiliation:
Department of Physics, Washington University, St. Louis, MO 63130
Get access

Abstract

Deuteron magnetic resonance (DMR) and infrared absorption spectra have been measured in amorphous hydrogenated carbon (a-C:H and a-C:D,H) and amorphous hydrogenated carbon nitride (a-CN:D,H) films plasma-deposited onto room-temperature substrates from feedstock mixtures of CH4, N2, and D2. DMR spectra and transient magnetization recoveries were measured between room temperature and 4 K. Recoveries are dominated by magnetization transport under extreme inhomogeneity. Methyl rotors CDx H3-x freeze out below 77 K. From the infrared absorption spectra, NH2, CHx, double bonded C-C, and triple bonded C-N stretching modes are observed. As a function of increasing nitrogen concentrations, the NH2 and C-N intensities dramatically increase while the CHx and C-C intensities decrease. In films where the ratio of nitrogen to carbon plus nitrogen is greater than 25%, the absorption spectra are dominated by NH2 stretching and bending modes; in contrast, the DMR spectra show many CDxHy configurations and a broader NDxHy structure. Proton NMR shows significant hydrogen clustering in a-CN:D,H.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 349: Symposium T – Novel Forms of Carbon II , 1994 , 489
Copyright
Copyright © Materials Research Society 1994

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

REFERENCES

1. Han, H. X. and Feldman, B.J., Solid State Commun. 65, 921 (1988).Google Scholar
2. Kaufman, J. H., Metin, S., and Saperstein, D. D., Phys. Rev. B 39, 13053 (1989).Google Scholar
3. McKenzie, D. R., McPhedran, R. C., Savvides, W., and Cockayne, D. J., Thin Solid Films 108, 247 (1983).Google Scholar
4. Fedders, P. A., Phys. Rev. B 38, 4740 (1988).Google Scholar