Study of chemical bonds in a-B/C:H films by electron probe microanalysis |
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Authors: | Zalavutdinov Renad K Gorodetsky Alexander E Zakharov Andrey P |
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Institution: | (1) Institute of Physical Chemistry, Academy of Sciences, Leninsky pr. 31, 117915 Moscow, Russia |
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Abstract: | This paper describes the study of chemical bonds in amorphous hydrogen rich boron/carbon (a-B/C:H) films by electron probe microanalysis. The films were deposited on Si single crystals by plasma chemical vapour deposition with a precursor-carborane (C2B10H12) in a laboratory setup. A film thickness and B/C ratio up to a value of 8000 Å and 4, respectively, have been obtained. The analysis of boron and carbon X-ray emission spectra has shown that the nearest order in the films is characterized by the coexistence of C-C, B-C and B-B bonds for B/C 1 and of B-B and B-C bonds for B/C 4. After two years exposure in air the oxygen content in the films increases from 2–5 to 15–20 at.%. |
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Keywords: | boron carbon film chemical bond |
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