Surface investigation of carbon films: from diamond to graphite | Zendy

Mezzi A. | Zendy; Kaciulis S. | Zendy

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Surface investigation of carbon films: from diamond to graphite

Author(s) -

Mezzi A.,

Kaciulis S.

Publication year - 2010

Publication title -

surface and interface analysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.52

H-Index - 90

eISSN - 1096-9918

pISSN - 0142-2421

DOI - 10.1002/sia.3348

Subject(s) - auger , diamond , carbon fibers , graphite , analytical chemistry (journal) , spectral line , chemistry , excited state , diamond like carbon , plasmon , materials science , atomic physics , nanotechnology , thin film , optoelectronics , organic chemistry , physics , astronomy , composite number , composite material

In the present work, a detailed spectroscopic investigation of carbon in different crystalline forms from diamond to graphite was carried out. The spectra of photoemission peak, plasmon losses and X‐rays‐excited C KLL were studied in order to characterize the carbon phase in different samples. In addition, a method for determination of sp 2 /sp 3 ratio from the first derivative of Auger C KLL spectrum was employed. The obtained results indicated that carbon photoemission peak for sp 2 and sp 3 configurations is characterized by the same value of binding energy. The peaks of plasmon losses and Auger KLL transition were more diagnostic than C 1s photoemission peak, permitting to distinguish the sp 2 and sp 3 configurations. For intermediate situation, which is present in diamond‐like carbon (DLC), characterized by a mixture of sp 2 and sp 3 states, the spectra were very similar to the carbon‐black, whereas single‐wall carbon nanotubes (CNT) were containing about 50% sp 2 states. Copyright © 2010 John Wiley & Sons, Ltd.

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