Open AccessCOMPARATIVE ANALYSIS OF DLC FLIM FINE STRUCTURE BY RAMAN SPECTRA AND X-RAY PHOTOELECTRON SPECTROSCOPY
Author(s) -
Liuhe Li,
Haiquan Zhang,
Cui Xuming,
Yanhua Zhang,
Lifang Xia,
Ma Xin-Xin,
Sun Yue
Publication year - 2001
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.50.1549
Subject(s) - raman spectroscopy , x ray photoelectron spectroscopy , materials science , diamond like carbon , graphite , binding energy , analytical chemistry (journal) , carbon fibers , spectral line , deposition (geology) , carbon film , thin film , nuclear magnetic resonance , nanotechnology , optics , atomic physics , chemistry , composite material , physics , chromatography , astronomy , paleontology , sediment , composite number , biology
The diamond-like carbon (DLC) films were deposited under different deposition parameters by using arc technology. The detailed relationship of sp3 structure with the D peak of the DLC films' Raman spectra is discussed. In aid of the discussion, X-ray photoelectron spectroscopy was used to determine the DLC films' C1s binding energy. By comparing the binding energy with the Raman shift of the films, it can be found that the intensity of D peak decomposed from the Raman shift can be increased not only by the graphite cluster, but also by higher content of sp3 bonds. Higher sp3 content of DLC films can be obtained by using 90 degree magnetic filter. The study shows that the C1s binding energy of DLC films, whose Raman spectra have higher intensity of D peak, can be 284.15 or 285.50 eV, which reveals that the DLC films may have higher graphite-like or diamond-like structure, respectively.