Improved adhesion and tribological properties of fast-deposited hard graphite-like hydrogenated amorphous carbon films

Zaharia, T.; Kudlacek, P Pavel; Creatore, M.; Groenen, R.; Persoone, P.; Sanden, M.C.M. van de

doi:10.1016/j.diamond.2011.08.003

Cited by 17 publications

(12 citation statements)

References 55 publications

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“…Thin silica-like lms deposited by PECVD have been used as low-k dielectric lms in microelectronics [20][21][22] and barrier/protective layers. [23][24][25] The expanding thermal plasma chemical vapor deposition (ETP-CVD) has emerged as a valid technique for the deposition of several thin materials including silica or silica-like lms, 26 amorphous carbon 27,28 and ZnO. 29,30 The main difference between the ETP-CVD and the conventional RF-PECVD is the absence of ion bombardment during the deposition, due to the very low electron temperature in the downstream region, therefore the limited developed self-bias voltage, i.e.…”

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confidence: 99%

Plasma-deposited hybrid silica membranes with a controlled retention of organic bridges

et al. 2013

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Plasma-deposited hybrid silica membranes with a controlled retention of organic bridges

et al. 2013

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“…(6) or Eq. (8). Obviously, @h j @t j h j;0 is a slope of the deposition curve in Figure 6 when the effective film thickness of component j is h j;0 , i.e., h j ¼ h j;0 , and therefore, the corresponding laser power P j ðt 0 Þ can be easily obtained by using linear interpolation.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…This is a popular technique to fabricate a film with advanced and/or improved functionality by designing a film with more than one material. For example, interlayer and multilayer techniques [6][7][8][9][10][11] have been used to improve the adhesion strength of diamond-like carbon (DLC) films. As well known, a large internal compressive stress exists in DLC films regardless of the growth technique, and the film starts to peel off from the substrate when this large compressive stress reaches a certain level.…”

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Fabricating functionally graded films with designed gradient profiles using pulsed laser deposition

Won

2013

Journal of Applied Physics

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A novel picosecond-laser pulsed laser deposition method has been developed for fabricating functionally graded films with pre-designed gradient profiles. Theoretically, the developed method is capable of precisely fabricating films with any thicknesses and any gradient profiles by controlling the laser beam powers for the two different targets based on the film composition profiles. As an implementation example, we have successfully constructed functionally graded diamond-like carbon films with six different gradient profiles: linear, quadratic, cubic, square root, cubic root, and sinusoidal. Energy dispersive X-ray spectroscopy is employed for investigating the chemical composition along the thickness of the film, and the deposition profile and thickness errors are found to be less than 3% and 1.04%, respectively. To the best of the authors' knowledge, this is the first method for fabricating films with designed gradient profiles and has huge potential in many areas of coatings and films, including multifunctional optical films. We believe that this method is not only limited to the example considered in this study, but also can be applied to all material combinations as long as they can be deposited using the pulsed laser deposition technique.

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“…Graphite‐like amorphous carbon and its composites are a subdivision of amorphous carbon. They contain a high ratio of sp 2 bonds, which provide desirable physical properties such as chemical inertness, high hardness, excellent friction and wear performance, good electrical conductivity, and biocompatibility . These advantageous properties suggest these materials could be highly suitable for coating applications for biomedical devices, automotive compartments, and membranes, among others …”

Section: Introductionmentioning

confidence: 99%

Influence of Amorphous, Carbon‐Derived Wrinkled Surface Topologies on the Colonization of Pseudomonas aeruginosa Bacteria

Nguyen

Wang

Sbarski

et al. 2019

Adv Materials Inter

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Surface wrinkling is a natural phenomenon that has inspired an emerging technology in surface patterning. Here, it is demonstrated that thermal treatment planar thin films of amorphous graphite‐like carbon (G‐aC) coatings deposited on shape memory polystyrene could be used to prepare substratum surfaces with topologies ranging from smooth undulations to those with rough distortion features. A comparative analysis of the attachment propensity of Pseudomonas aeruginosa ATCC 9721 and alginate‐overproducing P. aeruginosa PW2390 bacterial cells, together with the associated production of extracellular polymeric substances (EPS), reveal that at least a 13‐fold increase in the cell attachment density could be achieved, reaching up to 1.3 × 105 and 1.8 × 105 cells mm−2 being attached to the surface for both bacterial strains on G‐aC wrinkled surfaces. The P. aeruginosa PW2390 cells attached to a greater extent than the P. aeruginosa ATCC 9721 cells (≈45%) and without any increased production of EPS material. It is suggested that the increased level of cell attachment is related to the associated substantial increase in available substratum surface area. The results of this study afford a useful insight toward the production of substrata using a straightforward, tunable, and low cost microfabrication approach.

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Improved adhesion and tribological properties of fast-deposited hard graphite-like hydrogenated amorphous carbon films

Cited by 17 publications

References 55 publications

Plasma-deposited hybrid silica membranes with a controlled retention of organic bridges

Plasma-deposited hybrid silica membranes with a controlled retention of organic bridges

Fabricating functionally graded films with designed gradient profiles using pulsed laser deposition

Influence of Amorphous, Carbon‐Derived Wrinkled Surface Topologies on the Colonization of Pseudomonas aeruginosa Bacteria

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