Exploration of Wettability and Optical Aspects of ZnO Nano Thin Films Synthesized by Radio Frequency Magnetron Sputtering

Patel, Kartik H.; Rawal, Sushant K.

doi:10.5772/62804

Cited by 10 publications

(7 citation statements)

References 21 publications

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“…The changed WCAs of the pPMMA thin films on both glass and PET substrates were due to the differences in the surface roughness [50,51]. It is a typical phenomenon that appears on hydrophilic surfaces depending on the Wenzel theory [52]. The detailed atomic force microscope images and the R q of the pPMMA thin films surface grown on glass and PET substrates are shown in Figure S1 and Table S1.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Properties of Plasma-Polymerized Methyl Methacrylate via the Atmospheric Pressure Plasma Polymerization Technique

et al. 2019

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Pinhole free layers are needed in order to prevent oxygen and water from damaging flexible electrical and bio-devices. Although polymerized methyl methacrylate (polymethyl methacrylate, PMMA) for the pinhole free layer has been studied extensively in the past, little work has been done on synthesizing films of this material using atmospheric pressure plasma-assisted electro-polymerization. Herein, we report the synthesis and properties of plasma-PMMA (pPMMA) synthesized using the atmospheric pressure plasma-assisted electro-polymerization technique at room temperature. According to the Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and time of flight-secondary ion mass spectrometry (ToF-SIMS) results, the characteristic peaks from the pPMMA polymer chain were shown to have been detected. The results indicate that the percentage of hydrophobic groups (C–C and C–H) is greater than that of hydrophilic groups (C–O and O–C=O). The field emission-scanning electron microscope (FE-SEM) and thickness measurement results show that the surface morphology is quite homogenous and amorphous in nature, and the newly proposed pPMMA film at a thickness of 1.5 µm has high transmittance (about 93%) characteristics. In addition, the results of water contact angle tests show that pPMMA thin films can improve the hydrophobicity.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Properties of Plasma-Polymerized Methyl Methacrylate via the Atmospheric Pressure Plasma Polymerization Technique

et al. 2019

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“…The organic molecule adhesion induced relevant changes in the physicochemical properties of the surface. The wettability of solid surfaces is a very important property, and is determined by the surface geometric structures as well as the chemical composition of surfaces, which is dictated by the polar component of the surface energy [53,54]. The surface energy of ZnO functionalized with APTMS and MPA is lower than pristine sample.…”

Section: Surface Physicochemistry Of Functionalized Zno Thin Filmmentioning

confidence: 99%

Zinc oxide surface functionalization and related effects on corrosion resistance of titanium implants

Trino

Dias

Albano

et al. 2018

Ceramics International

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Important clinical concerns in orthopedics and dental implantology are associated with a significant release of titanium (Ti) metal ions and debris due to the low corrosion resistance of this material. Chemical modifications on Ti surfaces have been performed in order to minimize effects of corrosion. In this contribution, zinc oxide (ZnO) thin films were deposited onto Ti surfaces and functionalized with four different organic bifunctional molecules in order to increase the corrosion resistance. SEM and XPS indicated the formation of nanostructured ZnO thin film with hydroxyl groups available for covalent functionalization. The adhesion mechanism analyzed by XPS suggest that the attachment on ZnO occurs by carboxylic acid, silane, thiol and hydroxyl groups for 4aminophenylpropionic acid (APPA), 3-aminopropyltrimetoxysilane (APTMS), 3-mercaptopropionic acid (MPA), and polyethylene glycol (PEG) molecules. Electrochemical analysis for the functionalized ZnO specimens with APPA showed noble open circuit potentials (−0.2 V) and significant decrease in the corrosion current density (5.3 × 10 −7 A/cm 2) when compared to the values obtained for pristine Ti (−0.56 V and 2.3 × 10 −6 A/cm 2), indicating a promising material for applications in biomedical fields.

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“…The intensity of (002) diffraction peak of ZnO is extremely stronger, which indicates that the ZnO nanorods grow along the [001] direction. 15…”

Section: Xrd and Raman Characterizationsmentioning

confidence: 99%

Control of morphologies and properties of zinc oxide nanorod arrays by slightly adjusting their seed layers

Jiao

Niu

et al. 2016

Nanomaterials and Nanotechnology

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A simple method for controllable growth of zinc oxide nanorod arrays by adjusting preparation conditions of their seed layers is studied. Mole ratio of zinc acetate to diethanol amine, concentration of the two chemicals in the solution, and addition of polyethylene glycol in the solution are identified as three key parameters that have a great influence on microstructure of the seed layers. Surface roughness and uniformity in thickness of the seed layer are found as main factors that determine the nanorod arrays' morphologies and alignments. Average diameter of the nanorods can be tuned from 106 to 336 nm; spacial distribution density of the nanorods is effectively controlled by adding polyethylene glycol. Advantage of this simple method lies in two aspects: First, it ensures that all the nanorod arrays have same chemical compositions as their morphologies change. Second, the controlled morphologies of zinc oxide nanorod arrays can significantly tune the hydrophobic properties. As demonstrated in their hydrophobic properties measurement, the static contact angle of water on their top surfaces can be finely tuned from 127 to 143 .

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Exploration of Wettability and Optical Aspects of ZnO Nano Thin Films Synthesized by Radio Frequency Magnetron Sputtering

Cited by 10 publications

References 21 publications

Synthesis and Properties of Plasma-Polymerized Methyl Methacrylate via the Atmospheric Pressure Plasma Polymerization Technique

Synthesis and Properties of Plasma-Polymerized Methyl Methacrylate via the Atmospheric Pressure Plasma Polymerization Technique

Zinc oxide surface functionalization and related effects on corrosion resistance of titanium implants

Control of morphologies and properties of zinc oxide nanorod arrays by slightly adjusting their seed layers

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