Diamond-like films formed by pulsed laser irradiation of phenylcarbyne polymer

• Published in: Surface & coatings technology Vol. 125; no. 1-3; pp. 25 - 29
• Main Authors: Huang, S.M., Lu, Y.F., Sun, Z., Luo, X.F.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Lausanne Elsevier B.V 01.03.2000; Elsevier
• Subjects: Cross-disciplinary physics: materials science; rheology; Diamond; Exact sciences and technology; Laser deposition; Materials science; Methods of deposition of films and coatings; film growth and epitaxy; Physics; Polymer precursor; Pulsed laser; Pyrolysis; Pyrolysis; Diamond; Pulsed laser; Polymer precursor; Carbynes; Synthetic diamond; Laser deposition; Laser irradiation; Experimental study; Raman spectroscopy; Diamond structure; Pulsed lasers; Precursor; Thin films; Phenylene derivative polymer; SEM
• ISSN: 0257-8972; 1879-3347
• DOI: 10.1016/S0257-8972(99)00565-4

Growth of diamond-like films at room temperature by Nd:YAG laser (λ=532nm) irradiation of a polymer precursor is presented. The morphologies of the resulting samples were examined by scanning electron microscopy (SEM). The structures of films were investigated by Raman spectra. The mechanism of diamond-like phase conversion from the polymer is discussed. Our results indicate that the polymer is converted into sp3 diamond phases in amorphous carbon matrix phases by pulsed laser irradiation in an argon atmosphere. Raman spectroscopy analysis provides evidence for the conversion from this polymer to diamond-like phases. SEM micrographs reveal the crystalline structures. It is proposed that the conversion of diamond-like phases may be related to the unique structure of the polymer and the thermal energy provided by the laser beam.