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Atomic Structure Modifications of Diamond-Like Nanocomposite Films: Observation by Raman Spectroscopy, FTIR and STM

Published online by Cambridge University Press:  22 February 2011

B. Dorfman ,
M. Abraizov ,
Fred H. Pollak ,
D. Yan ,
M. Strongin ,
X.-Q. Yang  and
Z.-Y. Rong
B. Dorfman
Affiliation:
International Institute of Materials and Technology, Polytechnic University, Farmingdale, NY 11735
M. Abraizov
Affiliation:
International Institute of Materials and Technology, Polytechnic University, Farmingdale, NY 11735
Fred H. Pollak
Affiliation:
International Institute of Materials and Technology, Polytechnic University, Farmingdale, NY 11735
D. Yan
Affiliation:
Physics Department and NY State Center for Advanced Technology in Ultrafast Photonic Materials and Applications, Brooklyn Collegeof CUNY, Brooklyn, NY 11210
M. Strongin
Affiliation:
Physics Department, Brookhaven National Laboratory, Upton, NY 11973
X.-Q. Yang
Affiliation:
Physics Department, Brookhaven National Laboratory, Upton, NY 11973
Z.-Y. Rong
Affiliation:
Physics Department, SUNY-Stony Brook, Stony Brook NY 11794–3800
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Abstract

Raman spectroscopy, FTIR and scanning tunneling microscopy (STM) were used to study diamond-like nanocomposite (DLN) and metal containing DLN (Me-DLN) films. The FTIR spectra showed no appreciable absorption from the C-H stretch vibration band in DLN when 1 kV rf bias voltage was applied. Thermal annealing (450°C for 2 hrs) of (a) DLN and Cr-DLN films caused no change in the Raman spectra while (b) for Pt-DLN films there was a blue shift of both the crystalline (G) and microcrystalline (D) graphite-like features, an increase in the ID/IG intensity ratio and a decrease in the linewidths. The changes observed were more pronounced in the film with the highest Pt concentration. The STM image of this Pt-DLN film revealed a structure of aromatic graphite rings.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 349: Symposium T – Novel Forms of Carbon II , 1994 , 547
Copyright
Copyright © Materials Research Society 1994

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References

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