Electrical and optical properties of diamond-like carbon films deposited by pulsed laser ablation

Honglertkongsakul, Kanchaya; May, Paul; Paosawatyanyong, Boonchoat

doi:10.1016/j.diamond.2010.03.007

Cited by 41 publications

(12 citation statements)

References 23 publications

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“… * Diamond has carbon atoms in sp 3 hybridization arranged in a face-centered cubic crystal, while graphite has sp 2 hybridization structured in a hexagonal close-packed crystal. DLC is a combination of sp 2 and sp 3 , and the differences in the diamond/graphite arrangements and their chemical bonds cause high variation in DLC properties, showing almost a specific property for each DLC film [ 42 ]. Thus, the given values in the above table can be highly varied with fabrication method/conditions.…”

Section: Figurementioning

confidence: 99%

Review on the Antimicrobial Properties of Carbon Nanostructures

et al. 2017

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Swift developments in nanotechnology have prominently encouraged innovative discoveries across many fields. Carbon-based nanomaterials have emerged as promising platforms for a broad range of applications due to their unique mechanical, electronic, and biological properties. Carbon nanostructures (CNSs) such as fullerene, carbon nanotubes (CNTs), graphene and diamond-like carbon (DLC) have been demonstrated to have potent broad-spectrum antibacterial activities toward pathogens. In order to ensure the safe and effective integration of these structures as antibacterial agents into biomaterials, the specific mechanisms that govern the antibacterial activity of CNSs need to be understood, yet it is challenging to decouple individual and synergistic contributions of physical, chemical and electrical effects of CNSs on cells. In this article, recent progress in this area is reviewed, with a focus on the interaction between different families of carbon nanostructures and microorganisms to evaluate their bactericidal performance.

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Section: Figurementioning

confidence: 99%

Review on the Antimicrobial Properties of Carbon Nanostructures

et al. 2017

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“…There are two bands around 1355 cm −1 (D peak) and 1524 cm substrate. Again the intensity ratio I D /I G varies inversely with the graphite cluster size [22,23]. In this respect the ratio, I D /I G , may be indirectly related to sp 3 /sp 2 intensity, and it is observed to be 0.35 from Gaussian fitting after base line correction.…”

Section: Film Structure Analysismentioning

confidence: 87%

“…The G peak, which may occur from C=C sp 2 stretching vibration of olefinic or conjugated carbon chains, is attributed to the relative motion of sp 2 hybridized carb,on and the down shift of the G peak is related to bond angle disorder [22][23][24]. The D peak is attributed to the disordered breathing motion of sixfold aromatic rings [18,22] Thus, the peak positions in the Raman spectrum of DLN film and the intensity ratio of D/G peak are the most important parameters to understand the bulk properties of the DLN film for tribological purpose. There are two bands around 1355 cm −1 (D peak) and 1524 cm substrate.…”

Section: Film Structure Analysismentioning

confidence: 99%

A Clue to Understand Environmental Influence on Friction and Wear of Diamond-Like Nanocomposite Thin Film

Jana

Das

Gangopadhyay

et al. 2013

Advances in Tribology

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The wear and friction of diamond-like nanocomposite (DLN) film have been investigated in air with different relative humidity (RH), under deionized (DI) water and saline solution. The structure of the film has been characterized by Fourier transform infrared (FTIR), Raman spectroscopy, and scanning electron microscope (SEM). The result shows two interpenetrating network structure: a-C:H and a-Si:O, and they are interpenetrated by Si-C bonding. The tribological performance has been measured using ball-ondisc tribometer with tungsten carbide ball as counterbody at 10 N normal load. Results show that with increasing relative humidity (RH) from 35% to 80%, the coefficient of friction (COF) increases gradually from 0.005 to 0.074, whereas with increasing RH the wear factor decreases from 9.8 × 10 −8 mm 3 /Nm and attains a minimum value of 2.7 × 10 −8 mm 3 /Nm at 50% RH. With further increase of RH the wear factor increases again. Moreover, in DI water and especially in saline solution, both the COF and wear factor have been found to be significantly low. A clue has been interpreted to understand environmental dependency, considering the effect of surface dangling bonds, charge transfer, and chemical interactions.

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“…This diamond-like property is dependent on the ratio of sp 2 type graphite to sp 3 type diamond. The high hardness and chemical resistance of the DLC films make them good candidates for the wear-resistant protective coatings for metals, optical, or electronic components [1,2]. A variety of methods such as ion beam [3], ion plating [4], laser ablation [5], sputtering [6] and chemical vapor deposition (CVD) [7] employ energetic species to deposit DLC films.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Diamond-Like Carbon Films on Si Substrate with Different Filling Gases Using a Novel Miniature Dense Plasma Focus Device

Nalbandzadeh

Ghareshabani

2014

J Fusion Energ

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A low energy (60 J) miniature plasma focus with novel configuration was used to deposit diamond-like carbon films at room temperature on Si (1 0 0) substrates. The samples were deposited using 200 numbers of shots, and at off-center position with argon and methane as filling gases. The structure of deposited films are determined by X-ray diffractometry (XRD), surface morphology by scanning electron microscopy (SEM), component bonds by Raman spectroscopy and elemental composition by energy dispersive X-ray (EDX) analysis. The XRD data showed that the samples had only diffraction peaks related to SiO 2 and there were no observable peaks related to carbon. SEM micrographs showed uniformly distributed film with small nanoparticles. Raman spectroscopy verified the formation of amorphous carbon with D and G peaks. The D and G peak positions along with change in intensity ratio (I D /I G ) in the samples prepared with different filling gases were investigated. The EDX spectra showed the presence of expected constituent elements.

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Electrical and optical properties of diamond-like carbon films deposited by pulsed laser ablation

Cited by 41 publications

References 23 publications

Review on the Antimicrobial Properties of Carbon Nanostructures

Review on the Antimicrobial Properties of Carbon Nanostructures

A Clue to Understand Environmental Influence on Friction and Wear of Diamond-Like Nanocomposite Thin Film

Synthesis of Diamond-Like Carbon Films on Si Substrate with Different Filling Gases Using a Novel Miniature Dense Plasma Focus Device

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