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Characterization of nanocrystalline diamond films by core-level photoabsorption

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.115677· OSTI ID:278901
; ;  [1];  [2]; ; ; ;  [3]; ;  [4];  [5]
  1. Materials Science and Chemistry Divisions, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  2. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
  3. Materials Science and Technology Division, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  4. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  5. 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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