, Volume 46, Issue 7, pp 64–65 | Cite as

Diamond films by the excimer laser photoablation of polymers

  • Stefan Lätsch
  • Hiroyuki Hiraoka
Surface Modification Research Summary


The chemical vapor deposition of diamond films on silicon and various other substrates from a methane/hydrogen mixture, as well as from other gas compositions, uses plasma, a hot filament, or an acetylene torch to generate the reactive species. Although the attempt to produce diamond films from polymers is not new, crystalline diamond structures have yet to be obtained; only diamond-like carbon has been reported. The technique described here features the excimer laser ablation of polymers and the formation of crystalline diamond. A Raman peak at 1,330 cm−1 clearly identifies diamond, but its shape also reveals the presence of graphite. Peaks at 1,350 −1 and 1,597 cm−1 identify glassy carbon. Scanning electron microscopy micrographs reveal the crystalline structure. Cubic blocks are formed, as well as grains of about 1 μ size showing facets of all kinds reported for diamonds.


PMMA Excimer Laser Diamond Film Diamond Crystal Apply Physic Letter 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© TMS 1994

Authors and Affiliations

  • Stefan Lätsch
    • 1
  • Hiroyuki Hiraoka
    • 1
  1. 1.Hong Kong University of Science and TechnologyHong Kong

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