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6CCVD Research

Laser-induced diamond-like carbon film under different electric field directions

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2016-01-06
JournalLaser and Particle Beams
AuthorsShenjiang Wu, Dangjuan Li, SU Jun-hong
InstitutionsXiā€™an Technological University
Citations4

Abstract

Section titled ā€œAbstractā€

Abstract Ti electrodes were directly deposited at different positions on diamond-like carbon (DLC) films to form horizontal and longitudinal electric fields on their surfaces. The I D / I G ratio increased with the sp 3 content in the membrane when the DLC film was laser-irradiated and the electric field intensity was 0 V/cm. The bias electric field intensity increased from 0 to 1000 V/cm, and the corresponding laser-induced damage threshold (LIDT) increased. The three-dimensional damage morphology of the DLC film with two different electrode structures was observed when the electric field intensity was 220 V/cm. Two types of electrode structures were observed in the Raman spectra under an electric field intensity of 110 V/cm and laser energy densities of 0 and 1.56 J/cm 2 . Results showed that the horizontal bias field had a more obvious influence than the longitudinal electric field on the decrease of the sp 3 - sp 2 hybridization, preventing the formation of sp 2 clusters, thereby slowing down the graphitization process of DLC. Applying the bias field to the DLC film could slow down the DLC film graphitization process and improve the LIDT of the DLC film.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2007 - Laser damages and two diamond-like carbon growth techniques
  2. 2015 - Laser-induced damage of diamond-like carbon films with horizontal electric field
  3. 2012 - Laser-induced damage morphology of diamond-like carbon films with external electric field [Crossref]
  4. 2010 - Evaluation criteria of laser-induced damage threshold based on light scattering
  5. 2005 - Thermal shock effect on diamond-like carbon thin films induced by pulsed laser [Crossref]
  6. 2010 - Semiconductor Physics.
  7. 2015 - Microstructure and electrochemical properties of nitrogen-doped DLC films deposited by PECVD technique [Crossref]

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