Effect of Silver Dopants on the ZnO Thin Films Prepared by a Radio Frequency Magnetron Co-Sputtering System

Liu, Fang Cheng; Li, Jyun Yong; Chen, Tai Hong; Chang, Chun How; Lee, Ching-Ting; Hsiao, Wei Hua; Liu, Day Shan

doi:10.3390/ma10070797

Cited by 20 publications

(12 citation statements)

References 43 publications

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“…As can be seen in Figure 13 a, the fluorinated surface of the organosilicon film using the CF 4 plasma treatment shows an obvious peak at about 688.4 eV that was assigned as C-F chemical bond [ 54 , 55 ]. In addition, the peaks at approximately 368.1 and 374.3 eV in Figure 13 b were identified as the chemical state of the metallic Ag (denoted as Ag 0 3 d 5/2 and Ag 0 3 d 3/2 , respectively), in accordance with previous reports [ 56 , 57 ]. The metallic Ag signal likely emerged from the annealed Ag seed layer.…”

Section: Resultssupporting

confidence: 90%

Enhancement on the Surface Hydrophobicity and Oleophobicity of an Organosilicon Film by Conformity Deposition and Surface Fluorination Etching

Zhang

Chen

et al. 2018

Materials

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In this work, the surface morphology of a hydrophobic organosilicon film was modified as it was deposited onto a silver seed layer with nanoparticles. The surface hydrophobicity evaluated by the water contact angle was significantly increased from 100° to 128° originating from the surface of the organosilicon film becoming roughened, and was deeply relevant to the Ag seed layer conform deposition. In addition, the organosilicon film became surface oleophobic and the surface hydrophobicity was improved due to the formation of the inactive C-F chemical on the surface after the carbon tetrafluoride glow discharge etching. The surface hydrophobicity and oleophobicity of the organosilicon film could be further optimized with water and oleic contact angles of about 138° and 61°, respectively, after an adequate fluorination etching.

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Section: Resultssupporting

confidence: 90%

Enhancement on the Surface Hydrophobicity and Oleophobicity of an Organosilicon Film by Conformity Deposition and Surface Fluorination Etching

Zhang

Chen

et al. 2018

Materials

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“…The use of alloying and doping of magnetic thin films are used to fine-tune the properties for practical applications. These heterogeneous alloys can be designed by co-depositing [ 33 ] the two immiscible metallic components, one magnetic, the other nonmagnetic (e.g., Co. and Ag) on a substrate. Owing to their immiscibility, the components are likely to segregate ensuing the formation of nonmagnetic matrix with small magnetic precipitates embedded in it [ 34 , 35 , 36 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Target Composition and Sputtering Deposition Parameters on the Functional Properties of Nitrogenized Ag-Permalloy Flexible Thin Films Deposited on Polymer Substrates

2018

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We report the first results of functional properties of nitrogenized silver-permalloy thin films deposited on polyethylene terephthalic ester {PETE (C10H8O4)n} flexible substrates by magnetron sputtering. These new soft magnetic thin films have magnetization that is comparable to pure Ni81Fe19 permalloy films. Two target compositions (Ni76Fe19Ag5 and Ni72Fe18Ag10) were used to study the effect of compositional variation and sputtering parameters, including nitrogen flow rate on the phase evolution and surface properties. Aggregate flow rate and total pressure of Ar+N2 mixture was 60 sccm and 0.55 Pa, respectively. The distance between target and the substrate was kept at 100 mm, while using sputtering power from 100–130 W. Average film deposition rate was confirmed at around 2.05 nm/min for argon atmosphere and was reduced to 1.8 nm/min in reactive nitrogen atmosphere. X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, vibrating sample magnetometer, and contact angle measurements were used to characterize the functional properties. Nano sized character of films was confirmed by XRD and SEM. It is found that the grain size was reduced by the formation of nitride phase, which in turns enhanced the magnetization and lowers the coercivity. Magnetic field coupling efficiency limit was determined from 1.6–2 GHz frequency limit. The results of comparable magnetic performance, lowest magnetic loss, and highest surface free energy, confirming that 15 sccm nitrogen flow rate at 115 W is optimal for producing Ag-doped permalloy flexible thin films having excellent magnetic field coupling efficiency.

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“…It is also noticed that, as the calcination temperature increases, remarkable peak shift is observed in the XRD pattern (inset of Fig. 2) which is a clear confirmation of the incorporation of Ag + into the crystal lattice of ZnO (Liu et al 2017). The incorporation of Ag + ions into the Zn 2+ sites is too difficult to achieve because of the large ionic radius difference between them (126 pm for Ag + and 74 pm for Zn 2+ ) (Ahmad et al 2013).…”

Section: X-ray Diffractionmentioning

confidence: 65%

Defect minimized Ag-ZnO microneedles for photocatalysis

Ullattil

Fatima

Abdel‐Wahab

2020

Environ Sci Pollut Res

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A facile solution processing strategy has been developed for the formation of Ag-modified ZnO microneedles at various calcination temperatures such as 300, 500, and 700 °C (AZ3, AZ5, and AZ7 respectively). Due to the heavy doping of AgNO 3 , Ag + ions have been incorporated in to the crystal lattice of ZnO in all the Ag-ZnO samples, which facilitated the formation of Ag-ZnO microneedle morphology with minimized defect states, and obviously, the plasmon peaks were observed due to Ag modification. These Ag-ZnO microneedle structures have been evaluated for their photocatalytic performance using methylene blue as model target contaminant and their activity was compared with the commercially available titania P25 photocatalyst. The photoactivity of all the Ag-ZnO microneedle structures was significantly higher than that of the commercially available P25 photocatalyst with the most active Ag-ZnO material having a photocatalytic activity ~ 1.4 times greater than that of P25 titania. Electronic supplementary material The online version of this article (10.1007/s11356-020-09433-5) contains supplementary material, which is available to authorized users.

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Effect of Silver Dopants on the ZnO Thin Films Prepared by a Radio Frequency Magnetron Co-Sputtering System

Cited by 20 publications

References 43 publications

Enhancement on the Surface Hydrophobicity and Oleophobicity of an Organosilicon Film by Conformity Deposition and Surface Fluorination Etching

Enhancement on the Surface Hydrophobicity and Oleophobicity of an Organosilicon Film by Conformity Deposition and Surface Fluorination Etching

Effect of Target Composition and Sputtering Deposition Parameters on the Functional Properties of Nitrogenized Ag-Permalloy Flexible Thin Films Deposited on Polymer Substrates

Defect minimized Ag-ZnO microneedles for photocatalysis

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