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6CCVD Research

A study on the preparation of diamond like carbon film and its electrodes

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2016-01-26
JournalProceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
AuthorsShenjiang Wu, Dangjuan Li, Junqi Xu
InstitutionsXiā€™an Technological University

Abstract

Section titled ā€œAbstractā€

Diamond-like carbon (DLC) films have attracted much attention because of their excellent performance; however, the low anti-laser damage ability of such films seriously restricts their applicability. To overcome this problem, applying the bias field to the DLC film could slow down the DLC film graphitization process and improve the LIDT of the DLC film. Results showed that the longitudinal electric field could decrease the sp<sup>3</sup> hybridization to sp<sup>2</sup> hybridization, prevent the formation of sp<sup>2</sup> clusters. in this study, Unbalanced magnetron sputtering (UBMS) was used to deposit a diamond-like carbon (DLC) film on Si substrates. The refractive index and extinction coefficient of the DLC films were measured using elliptical polarization spectrometer. The transmittance and the surface roughness of DLC films were examined using optical microscopy, SEM, AFM and Raman spectroscopy. Ti electrodes were deposited on DLC films directly, forming a transverse and longitudinal bias field on filmsā€™ surfaces. The 3D electrodes morphology of the DLC film was observed. The electrode thickness was measured by a white-light interferometer, and the average thickness of the electrodes was 325.90 nm. The surface roughness of the electrodes was tested using the Talysurf CCI 2000 noncontact surface-measuring instrument, and the average roughness of the electrodes was 0.50 nm. The electrodes have good Ohmic contact and little thermal stress, and it can be used to form a parallel electric field.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2015 - Laser-induced damage of diamond-like carbon films with horizontal electric field
  2. 2005 - Non Destructive Testing of Laser Induced Damage in Optical Thin Films by Laser Photothermal Deflection Image
  3. 2015 - Influence of deposition temperature on optical and laser-induced damage properties of LaTiO3 films
  4. 2007 - Study on Laser Damage Properties of Optical Thin Films
  5. 2007 - Laser Damages and Two Diamond-Like Carbon Growth Techniques
  6. 2006 - Discussion of the measurement methods for laser induced damage threshold of optical coating
  7. 1994 - DLC film deposition, properties and applications
  8. 2006 - Influence of Laser Conditioning on Laser Induced Damage Threshold of Antireflection Layer

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