Characterization of nanocrystalline diamond films by core-level photoabsorption
- Materials Science and Chemistry Divisions, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Materials Science and Technology Division, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)
Core-level photoabsorption has been used to determine the {ital sp}{sup 2} and {ital sp}{sup 3} bonding content of nanocrystalline diamond thin films grown using C{sub 60} or CH{sub 4} precursors. The C(1{ital s}) absorption spectra show clear bulk diamond excitonic and {ital sp}{sup 3} features with little evidence of {ital sp}{sup 2} bonding, while the Raman spectra measured from these same films are ambiguous and indeterminate. This result can be attributed to the local structure (near-neighbor bonding) sensitivity of core-level photoabsorption that is insensitive to domain size, unlike Raman spectroscopy. {copyright} {ital 1996 American Institute of Physics.}
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 278901
- Journal Information:
- Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 12 Vol. 68; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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