Evidence of Carboxyl Modification of Hydrogen-Free Diamond-Like Carbon Films Assisted by Radio Frequency Plasma in Vacuum. (18th October 2012)

• Record Type: Journal Article
• Authors: Xue, Yuqi; Wang, Zixin; Wang, Jun; Hu, Changji; Xie, Fangyan; Chen, Dihu; He, Zhenhui
• Other Names: Kondo S.-I. Academic Editor.; Rossi S. Academic Editor.
• Is Part Of: ISRN spectroscopy. Volume 2012(2012)
• Publication Date: 2012-10-18
• Subjects: Spectrum analysis -- Periodicals; Spectrum analysis; Periodicals; Electronic journals; 543.5
• DOI: 10.5402/2012/963298
• Languages: English
• ISSNs: 2090-8776

Abstract

Abstract : Modification of hydrogen-free diamond-like carbon (DLC) is presented, with acrylic acid (AA) vapor carried into a vacuum chamber by argon and with the in situ assistance of low-power radio frequency (RF) plasma at a temperature below 100°C. Measured by atomic force microscopy (AFM) technique, the roughness (R a ) of the DLC was 1.063 ± 0.040 nm. XPS and FT-IR spectra analysis showed that carboxyl groups were immobilized on the surface of the DLC films, with about 40% of carboxyl group area coverage. It was found that the RF plasma and reaction time are important in enhancing the modification rate and efficiency.