Γ-Rays Irradiation Induced Structural and Morphological Changes in Copper Nanowires. (20th September 2016)

• Record Type: Journal Article
• Authors: Shehla, H.; Thema, F. T.; Ishaq, A.; Ali, Naveed Zafar; Javed, I.; Wan, D.; Maaza, M.
• Other Names: Caroff Philippe Academic Editor.
• Is Part Of: Journal of nanomaterials. Volume 2016(2016)
• Publication Date: 2016-09-20
• Subjects: Nanostructured materials -- Periodicals; Nanotechnology -- Periodicals; Nanomatériaux; Nanostructured materials; Nanotechnology; Nanostructures; Nanotechnology; Periodicals; Fulltext; Internet Resources; Periodicals; 620.115
• DOI: 10.1155/2016/6134801
• Languages: English
• ISSNs: 1687-4110

Abstract

Abstract : This contribution reports on the effect of γ -irradiations on the structural and morphological properties of copper nanowires (Cu-NWs) within the γ doses varying from 6 to 25 kGy. At 9 kGy, the Cu-NWs started welding, forming perfect X-, V-, II-, and Y-shaped molecular junctions. Further increasing the γ dose up to 15 kGy caused the Cu-NWs to fuse and form larger diameter NWs. At the highest dose of 25 kGy, the nanowires converted into a continuous Cu thin film. However, X-ray diffraction (XRD) results showed that the structure of the Cu-NWs remained stable even after converting into a thin film. The formation of the Cuprite (Cu2 O) phases was observed at higher γ dose. The mechanism of forming welded networks of Cu-NWs and Cu thin films is explained via the short and high energy γ -ray wavelengths which act on Cu-Cu molecular covalent bonds isotropically.