Walters, J.K., Kuhn, M., Spaeth, C., Dooryhee, E., Newport, Robert J. (1998) X-ray diffraction studies of the effects of N incorporation in amorphous CNx, materials. Journal of Applied Physics, 83 (7). pp. 3529-3534. ISSN 0021-8979. (doi:10.1063/1.366566) (KAR id:15992)
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Official URL: http://dx.doi.org/10.1063/1.366566 |
Abstract
The effects of nitrogen incorporation on the atomic-scale structure of amorphous CNx samples have been studied for 0, 5, 20, and 30 at. % N concentration, by x-ray diffraction. Significant differences in the structure are observed on the incorporation of only 5 at. % N, and the changes in structure continue as further N is added. From the experimental data, we are able to obtain directly the average bond distances and then calculate the average bond angles for each of the samples. The average first neighbor distance shows a gradual decrease from 1.55 Angstrom for 0 at. % N, to 1.44 Angstrom for 30 at. % N, and a similar trend is observed in the position of the second neighbor peak. This gives a corresponding increase in the average bond angle from 108 degrees to 114 degrees. The results show an increase in the fraction of sp(2) bonded carbon atoms with increasing N concentration, and there is evidence for the presence of significant numbers of C=N and C=N bonds. These results are also consistent with stress, hardness, and optical gap measurements for these samples. (C) 1998 American Institute of Physics. [S0021-8979(98)03907-3].
Item Type: | Article |
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DOI/Identification number: | 10.1063/1.366566 |
Subjects: |
Q Science Q Science > QC Physics |
Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
Depositing User: | J.M. Smith |
Date Deposited: | 29 Apr 2009 13:16 UTC |
Last Modified: | 05 Nov 2024 09:50 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/15992 (The current URI for this page, for reference purposes) |
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