Localized surface Plasmon resonance of Copper and Cobalt quantum dots in diamond-like Carbon film

In this study, the localized surface plasmon resonance of Copper and Cobalt quantum dots embedded in diamond-like Carbon films, fabricated through radiofrequency plasma-enhanced chemical vapor deposition, were investigated. In addition, the Cobalt and Copper nanoparticles were fabricated through radiofrequency and direct current sputtering methods via co-deposition in a simultaneous sputtering process. Then, the ultravioletvisible-near-infrared spectroscopy, energy dispersive x-ray spectroscopy, atomic force microscopy and field emission scanning electron microscopy were used to analyze the samples and the effect of changes in sputtering conditions on plasmon resonance of Copper and Cobalt quantum dots were also studied. The results showed that the localized surface plasmon resonance of Copper and Cobalt quantum dots embedded in diamond-like Carbon occurred at wavelengths of about 600 and 230 nanometers, respectively. Furthermore, the simultaneous sputtering of elements led to the formation of two types of spectra from plasmon resonance of the samples.