Photoluminescence and Raman spectroscopy in hydrogenated carbon films

@inproceedings{Marchon1997PhotoluminescenceAR,
  title={Photoluminescence and Raman spectroscopy in hydrogenated carbon films},
  author={Bruno Marchon and Jing Gui and Kevin J. Grannen and Gary C. Rauch and Joel W Ager and S. R. P. Silva and John Robertson},
  year={1997}
}
a-C:H films prepared by DC-magnetron sputtering in an H/sub 2/:Ar mixture exhibit strong photoluminescence (PL) peaks superimposed upon the Raman scattering spectrum. PL becomes observable at a hydrogen content of ca. 34%, and increases exponentially thereafter, driven by the progressive saturation of carbon dangling bonds. In this %H range, hardness and elastic modulus decrease and CSS durability reaches an optimum. The Raman G peak position is very sensitive to deposition temperature (shift… CONTINUE READING

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