Abstract
In this paper, we report oxidation time effect on highly porous silver oxide nanowires thin films fabricated using ultrasonic spray pyrolysis and oxygen plasma etching method. The NW’s morphological, electrical, and optical properties were investigated under different plasma etching periods and the number of deposition cycles. The increase of plasma etching and oxidation time increases the surface roughness of the Ag NWs until it fused to form a porous thin film of silver oxide. AgNWs based thin films were characterized using X-ray diffraction, scanning electron microscope, transmission electron microscope, X-ray photoemission spectroscopy, and UV–Vis spectroscopy techniques. The obtained results indicate the formation of mixed mesoporous Ag2O and AgO NW thin films. The Ag2O phase of silver oxide appears after 300 s of oxidation under the same conditions, while the optical transparency of the thin film decreases as plasma etching time increases. The sheet resistance of the final film is influenced by the oxidation time and the plasma application periodicity.Graphic abstract
Highlights
The research of new metal oxide nanomaterials thin films deposited on glass substrates has gained much attention in recent years [1, 2] due to their applications in optical engineering [3], sensors [4], biomedicine [5], energy storage [6], and catalysis [7].Silver (Ag) is known for its valuable properties in many aspects of human life
We report the influence of oxidation time on the morphology, optical, and electrical properties of silver and silver oxide nonporous NWs This oxidation process is known for generating nano porosity on the surface of the nanostructure
Our results revealed that the films formed after 900 s oxidation time were of mixed-phase of Ag2O, AgO, and a mixture of Ag and A g2O, which was confirmed by X-ray diffraction and X-ray photoelectron spectroscopy studies
Summary
The research of new metal oxide nanomaterials thin films deposited on glass substrates has gained much attention in recent years [1, 2] due to their applications in optical engineering [3], sensors [4], biomedicine [5], energy storage [6], and catalysis [7]. Silver (Ag) is known for its valuable properties in many aspects of human life Properties such as electrical conductivity, antimicrobial, photovoltaic, optical properties, and oxidative catalysis toward many reactions [8,9,10,11,12] make the element superior to other nanostructured metals. We report the influence of oxidation time on the morphology, optical, and electrical properties of silver and silver oxide nonporous NWs This oxidation process is known for generating nano porosity on the surface of the nanostructure. This porosity affects the electrical and optical properties of the nanomaterial film
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