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Multilayers Diamond-Like Carbon Film With Germanium Buffer Layers By Pulsed Laser Deposition

Author

Listed:
  • Y. CHENG

    (Opto-Electronics Facility of Wuhan Mechanical College, Wuhan 430075, P. R. China)

  • Y. M. LU

    (Opto-Electronics Facility of Wuhan Mechanical College, Wuhan 430075, P. R. China)

  • Y. L. GUO

    (Opto-Electronics Facility of Wuhan Mechanical College, Wuhan 430075, P. R. China)

  • G. J. HUANG

    (Opto-Electronics Facility of Wuhan Mechanical College, Wuhan 430075, P. R. China)

  • S. Y. WANG

    (Opto-Electronics Facility of Wuhan Mechanical College, Wuhan 430075, P. R. China)

  • F. T. TIAN

    (Opto-Electronics Facility of Wuhan Mechanical College, Wuhan 430075, P. R. China)

Abstract

Multilayer diamond-like carbon film with germanium buffer layers, which was composed of several thick DLC layers and thin germanium island “layers” and named as Ge-DLC film, was prepared on the germanium substrate by ultraviolet laser. The Ge-DLC film had almost same surface roughness as the pure DLC film. Hardness of the Ge-DLC film was above 48.1GPa, which was almost the same as that of pure DLC film. Meanwhile, compared to the pure DLC film, the critical load of Ge-DLC film on the germanium substrate increased from 81.6mN to 143.8mN. Moreover, Ge-DLC film on germanium substrates had no change after fastness tests. The results showed that Ge-DLC film not only kept high hardness but also had higher critical load than that of pure DLC film. Therefore, it could be used as practical protective films.

Suggested Citation

  • Y. Cheng & Y. M. Lu & Y. L. Guo & G. J. Huang & S. Y. Wang & F. T. Tian, 2017. "Multilayers Diamond-Like Carbon Film With Germanium Buffer Layers By Pulsed Laser Deposition," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 24(02), pages 1-6, February.
    • Handle: RePEc:wsi:srlxxx:v:24:y:2017:i:02:n:s0218625x17500147
    DOI: 10.1142/S0218625X17500147
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