Synthesis of carbon nanowalls on the surface of nanoporous alumina membranes by RI-PECVD method

Yerlanuly, Yerassyl; Christy, Dennis; Nong, Ngo Van; Kondo, Hiroki; Alpysbayeva, Balaussa; Nemkayeva, Renata R.; Kadyr, Meruert; Рамазанов, Т. С.; Габдуллин, М. Т.; Batryshev, D.G.; Hori, Masaru

doi:10.1016/j.apsusc.2020.146533

Cited by 18 publications

(12 citation statements)

References 30 publications

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“…Yerlanuly [7] studied the synthesis of carbon nanowalls on the surface of nanoporous membranes of aluminum oxide, which had different morphology and thickness, using a radical-injection plasma-enhanced chemical vapor deposition method. For the results to be compared, the carbon nanowalls were received on the surface of a silicon substrate and aluminum foil.…”

Section: Literature Reviewmentioning

confidence: 99%

Vertical Graphene Growth on AlCu4Mg Alloy by PECVD Technique

et al. 2021

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Vertical graphene, which belongs to nanomaterials, is a very promising tool for improving the useful properties of long-used and proven materials. Since the growth of vertical graphene is different on each base material and has specific deposition setting parameters, it is necessary to examine each base material separately. For this reason, a full factor design of experiment was performed with 26 = 64 rounds, which contained additional 5 central points, i.e., a total of 69 rounds of individual experiments, which was to examine the effect of input factors Temperature, Pressure, Flow, CH4, Plasma Power, and Annealing in H2 on the growth of vertical graphene on aluminum alloy AlCu4Mg. The deposition was performed using plasma-enhanced chemical vapor deposition (PECVD) technology. Mainly, the occurrence of graphene was analyzed, which was confirmed by Raman spectroscopy, as well as its thickness. The characterization was performed using electron and transmission microscopy, including an atomic force microscope. It was found that the growth of graphene occurred in 7 cases and its thickness is affected only by the interaction flow (sccm) × pretreatment H2 (sccm).

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Section: Literature Reviewmentioning

confidence: 99%

Vertical Graphene Growth on AlCu4Mg Alloy by PECVD Technique

et al. 2021

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“…CNWs are three-dimensional networks with open edges connected by vertically oriented graphene nanosheets, which are freely arranged perpendicular to the substrates and form a labyrinth-like surface. , As compared to classic graphene, CNWs typically have a large specific surface area. At the same time, due to the vertical orientation of small graphene sheets, there is always a rather high level of defectiveness contributed by crystallite edges. , According to the literature, different morphological forms of CNWs have been observed depending on the arrangement of vertical graphene sheets, including petal-like, cauliflower-like, maze-like, or floc-like structures. ,, Owing to unique structural, morphological, electrical, optical, and chemical properties, ,,, CNWs are attracting more attention as a functional electronic material for solar cells, − light-emitting diodes, , sensors, , superhydrophobic coatings, , and supercapacitors, , which have recently become more popular due to the ubiquity of wearable electronics and portable devices. , However, until today, there were only a few papers focused on the effect of ionizing radiation on the properties of CNWs . For instance, Esquinazi et al studied the effect of proton irradiation on the magnetic properties of CNWs.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Electron and Proton Irradiation on Structural and Electronic Properties of Carbon Nanowalls

et al. 2022

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In this work, a complex experimental study of the effect of electron and proton ionizing radiation on the properties of carbon nanowalls (CNWs) is carried out using various state-of-the-art materials characterization techniques. CNW layers on quartz substrates were exposed to 5 MeV electron and 1.8 MeV proton irradiation with accumulated fluences of 7 × 1013 e/cm2 and 1012 p/cm2, respectively. It is found that depending on the type of irradiation (electron or proton), the morphology and structural properties of CNWs change; in particular, the wall density decreases, and the sp2 hybridization component increases. The morphological and structural changes in turn lead to changes in the electronic, optical, and electrical characteristics of the material, in particular, change in the work function, improvement in optical transmission, an increase in the surface resistance, and a decrease in the specific conductivity of the CNW films. Lastly, this study highlights the potential of CNWs as nanostructured functional materials for novel high-performance radiation-resistant electronic and optoelectronic devices.

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“…It is the most commonly used method for preparing VGN, which can prepare VGN with large areas and controllable thickness. [16][17][18][19] For example, Zhou et al recently realized controllable growth of VGN through which the thickness and roughness of VGN can be precisely controlled by controlling the growth time, on Ti/quartz glass surfaces with a maximum size of 30 mm × 30 mm through the PECVD method. 20 However, due to plasma bombardment, the use of traditional PECVD deposition systems may lead to more defects in VGN, as well as a larger number of internal amorphous structures and sp 3 bonds, which makes it difficult to prepare high-quality VGN structures and limits the application of VGN.…”

Section: Introductionmentioning

confidence: 99%