Structural evolution of laser-irradiated ultrananocrystalline diamond/amorphous carbon composite films prepared by coaxial arc plasma

Abdelrahman Zkria, Eslam Abubakr, Mohamed Egiza, Ariful Haque, Jagdish Narayan, Tsuyoshi Yoshitake

研究成果: ジャーナルへの寄稿学術誌査読

12 被引用数 (Scopus)

抄録

Ultrananocrystalline diamond/hydrogenated amorphous carbon films were synthesized by coaxial arc plasma deposition. The morphological and structural evolutions of the films driven by laser irradiation (ArF, 193 nm, 20 ns) are examined at different laser energies (0.4–1 J cm−2). Up on laser irradiation, the films revealed hydrogen effusions accompanied by the transformation of sp3 into sp2-hybridization carbon. However, the film irradiated at 0.8 J cm−2 exhibited higher sp3 fractions, which can be attributed to that: a specific value of laser energy density (0.8 J cm−2) can provide a suitable amount of heating that is enough to quench the film and increase the sp3 contents.

本文言語英語
論文番号105503
ジャーナルApplied Physics Express
13
10
DOI
出版ステータス出版済み - 10月 1 2020

!!!All Science Journal Classification (ASJC) codes

  • 工学(全般)
  • 物理学および天文学(全般)

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