Wettability of CNW/ITO Micro Structure for Modification of Surface Hydrophilicity

Abstract

Although the carbon nanowall is a remarkable material in various fields, it generally shows near hydrophobicity. For modification of hydrophilicity, various modification techniques have been utilized, however, most of the techniques adopted a modification to carbon oxide by chemical processing and plasma treatment, which induce carbon lattice defects, causing the decline of the carbon nanowall quality. While we introduce an eco-friendly modification technique that causes non-defect of carbon lattice and maintains intrinsic carbon nanowall properties by depositing ITO on pristine-carbon nanowall for inducing hydrophilicity. The morphology of carbon nanowall (CNW)/ indium tin oxide (ITO) microstructure was examined by FE-SEM, and the functional group and oxygen components of ITO were investigated by analyzing XPS. The contact angles were measured for wettability analysis according to the surface thickness of ITO.

Effect of the Plasma Gas Type on the Surface Characteristics of 3Y-TZP Ceramic

“…During the plasma treatment, the remnant organic compounds at the surface were removed by breaking a C–C bond [ 31 ]. The surface oxidation occurred with a formation of new functional groups (C–O and C=O bonds) [ 32 ], thereby enhancing the surface hydrophilicity [ 33 ]. The O 1s spectra, as shown in Figure 2 B, consisted of a broad feature that can be resolved into three components: the lattice oxygen in ZrO 2 (O L ) at around 530.0 eV, the oxygen in acidic hydroxyl OH(a) group at around 531.5 eV, and the oxygen in basic hydroxyl OH(b) group at around 532.5 eV [ 29 ].…”

Investigation of the Properties of Anode Electrodes for Lithium–Ion Batteries Manufactured Using Cu, and Si-Coated Carbon Nanowall Materials

“…Figure 6b shows the I D /I G ratios expressing the defect levels of the samples and the I 2D /I G ratios representing the number of graphene layers [40]. Moreover, a lower I D /I G ratio indicates superior crystal quality and fewer defects [45][46][47]. Among the samples, the I D /I G ratio of the CNW was the highest, while that of the Si−CNW was the lowest.…”