Structure and optical property of the a-C:N films synthesized by filtered cathode vacuum arc

Hsieh, Wei-Jen; Shih, Pai-Shen; Lin, Chun-Chun; Wang, Chih‐Yuan; Shih, Han C.

doi:10.1016/j.surfcoat.2005.07.038

Cited by 7 publications

(2 citation statements)

References 19 publications

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“…2). In addition, the weak peak at ∼723 cm −1 belongs to the out of plane bending configuration of the graphite-like carbon [33], which only appears among DLC specimens rather than NBR (seen in the red rectangular box in Fig. 4).…”

Section: Tablementioning

confidence: 99%

Effect of sputtering pressure on the surface topography, structure, wettability and tribological performance of DLC films coated on rubber by magnetron sputtering

Liu

Wei

et al. 2019

Surface and Coatings Technology

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Section: Tablementioning

confidence: 99%

Effect of sputtering pressure on the surface topography, structure, wettability and tribological performance of DLC films coated on rubber by magnetron sputtering

Liu

Wei

et al. 2019

Surface and Coatings Technology

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“…This indicates the formation of tetrahedral carbon structures in the DLC films and the inclusion of hydrogen. The peak at ~727 cm −1 belongs to the out of plane bending configuration of the graphite like carbon [22]. A weak peak at 1624 cm −1 is assigned to carbon double bond hybridization.…”

Section: Surface Characterisation Of Prepared Samplesmentioning

confidence: 99%

Study of Human Serum Albumin Adsorption and Conformational Change on DLC and Silicon Doped DLC Using XPS and FTIR Spectroscopy

Ahmed¹,

Byrne²,

McLaughlin³

et al. 2013

JBNB

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Diamond-like carbon (DLC) coatings are extremely useful for creating biocompatible surfaces on medical implants. DLC and silicon doped DLC synthesised on silicon wafer substrate by using plasma enhanced chemical vapour deposition (PECVD). The effects of surface morphology on the interaction of HSA with doped and undoped DLC films have been investigated. The chemical composition of the surface before and after adsorption was analysed using X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR). Results showed that silicon incorporation DLC tends to increase of sp³/sp² hybridization ratio by decreasing sp² hybridized carbon bonding configurations. Following exposure to solutions containing (0.250 μg/ml) HSA, the results indicated that significant changes in the C, N and O levels on the surfaces with reducing of the Si2p band at 100 eV. From FTIR spectrum, the peaks occur the following functional groups were assigned as amide I and II groups at 1650 cm^-¹ and 1580 cm^-¹. Both XPS and FTIR spectroscopy confirm that HSA was bound onto the surfaces of the DLC and Si-DLC films via interaction of ionized carboxyl groups and the amino group did not play a significant role in the adsorption of protein. These results from peak intensity show that an adsorbed layer of HSA is higher at high level (19%) silicon doping. Therefore doping of DLC may provide an approach to controlling the protein adsorption.<...

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Electrical percolation threshold in Ag–DLC nanocomposite films prepared by RF-sputtering and RF-PECVD in acetylene plasma

Abdolghaderi

Astinchap

Shafiekhani

2016

J Mater Sci: Mater Electron

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Silver-diamond like carbon (Ag-DLC) nanocomposite films were deposited on glass and silicon substrates by co-deposition of RF-sputtering and RF-PECVD method in acetylene plasma. The effects of deposition time on creation of conductive percolation pathway in Ag-DLC nanocomposite films were investigated. The films were characterized by XRD pattern, AFM images, UV-Vis and FTIR spectra. Pressure of chamber's variation over time was illustrated the rate of carbon and silver deposition changing. The results showed that nanoparticles' size and surface roughness was increased by increasing deposition time. Surface plasmon resonance peak's red shift in optical absorption spectra of samples could be depends on silver nanoparticles' scale up. Based on electrical measurements, electrical percolation threshold was observed only in the film with 35 min deposition time. Pathway was created for electric current by Ag nanoparticles' moving in carbon matrix due to sp3 bonds and silver content in the films. The aging effect was studied for sample #2 in the threshold of percolation, where obtained Ag nanoparticles memorize its previous pathway. This investigation provides a better understanding for electric properties of Ag-DLC nanocomposite based on the percolation theory.

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Structure and optical property of the a-C:N films synthesized by filtered cathode vacuum arc

Cited by 7 publications

References 19 publications

Effect of sputtering pressure on the surface topography, structure, wettability and tribological performance of DLC films coated on rubber by magnetron sputtering

Effect of sputtering pressure on the surface topography, structure, wettability and tribological performance of DLC films coated on rubber by magnetron sputtering

Study of Human Serum Albumin Adsorption and Conformational Change on DLC and Silicon Doped DLC Using XPS and FTIR Spectroscopy

Electrical percolation threshold in Ag–DLC nanocomposite films prepared by RF-sputtering and RF-PECVD in acetylene plasma

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