Akademik Veri Yönetim Sistemi
5th International World Energy Conference , Kayseri, Türkiye, 12 - 13 Aralık 2025, ss.63-68, (Tam Metin Bildiri)
In this study, Copper (Cu) nanoparticles were grown on glass substrates using the cryogenic technique in 50 K steps over a substrate temperature range of 100-300 K in a vacuum (4.5x10-6 Torr) environment. X-ray diffraction (XRD) patterns of the films revealed that all samples grew in a cubic structure along the (111) plane. Field Emission Scanning Electron Microscope (FESEM) images of Cu nanoparticles showed that the films produced at 200 K substrate temperature were spherical and consisted of equally sized clusters (10-12 nm). This result indicates that the soliton growth mechanism occurred at 200 K substrate temperature during the nanoparticle production process. Optical measurement results showed that Cu nanoparticles produced at all substrate temperatures exhibited surface plasmon resonance (SPR) at a wavelength of ~600 nm. In the next step of the study, a Cu/Au structure was produced using Au nanoparticles produced at 230 K substrate temperature. FESEM images of the produced structure revealed a grain size of approximately 23 nm. Atomic Force Microscope (AFM) images revealed an average roughness value (Ra) of 4.254 nm for the Cu/Au structure. Optical measurements revealed that the effective SPR event in the Cu/Au structure occurred at a wavelength of ~590 nm.
Keywords: Cu nanoparticle, Plasmonic, Soliton, Cryogenic technique.