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| Paper IPM / Physic / 15319 |
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| Abstract: | |||||||||
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Silver-Gold alloy/diamond like carbon (Ag-Au/DLC) nanocomposite films were
prepared by co-deposition of RF-sputtering and RF-PECVD on glass substrates
by using acetylene gas and silver-gold target. The deposition process was carried
out at room temperature in one minute with the variable parameters of initial
pressures and RF powers. X-ray diffraction analysis demonstrated the formation
of Ag/Au alloy nanoparticles with a face-centered cubic (FCC) structure.
Localized surface plasmon and optical properties of Ag-Au alloy nanoparticles
were studied by UV-visible spectrophotometry which showed that increasing
RF power and initial pressure cause a redshift in all samples. Moreover, the
effect of RF power and initial pressure on the size and shape of nanoparticles
were studied by 2D Atomic force microscopy images. Energy dispersive X-ray
spectroscopy revealed the formation of Ag-Au/DLC nanoparticles and the percentages
of C, Ag, Au and O in all samples. The applied method for Ag/Au alloy
preparation is the one step and low-cost method which makes the samples
ready for sensing application.
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