MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678

This article has now been updated. Please use the final version.

Correlation between sp2/sp3 Ratio or Hydrogen Content and Water Contact Angle in Hydrogenated DLC Film
Shih-Chin LeeFong-Cheng TaiChe-Hung Wei
Author information
JOURNAL RESTRICTED ACCESS Advance online publication

Article ID: MER2007044

Details
Abstract

Water contact angle has been measured to indirectly assess the sp2/sp3 ratio and hydrogen content of DLCH film under post N2 annealed treatment with O2 content under 100 ppm. XPS spectrum is used to measure the C1s bonding type and calculate the sp2/sp3 ratio. The surface morphology of DLCH film was examined by SEM and AFM. From experimental results, it seems the surface morphology was not a critical factor on water contact angle value, at least for DLCH film. A quantitative correlation between water contact angle and sp2/sp3 ratio of DLCH film is established from which the hydrogen content can be estimated by the sp2/sp3 ratio as well as Angus equation.

Content from these authors
© 2007 The Japan Institute of Metals and Materials
feedback
Top