Physical Properties of Graphene via γ-radiolysis of Exfoliated Graphene Oxide

Thema, Force Tefo; Beukes, Philip; Nuru, Z.Y.; Kotsedi, L.; Khenfouch, Mohammed; Dhlamini, M.S.; Julies, B.; Iwuohah, E.; Mâaza, M.

doi:10.1016/j.matpr.2015.08.033

Cited by 16 publications

(1 citation statement)

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“…Atoms are never displaced by -irradiation induced effect sincerays only act on bonds. As a preconclusion, this study will be followed by the investigation of the effect of other radiations on similar samples using a similar approach as in other systems that we studied [23].…”

Section: Journal Of Nanomaterialsmentioning

confidence: 99%

γ-Rays Irradiation Induced Structural and Morphological Changes in Copper Nanowires

Honey

Thema

Ahmad

et al. 2016

Journal of Nanomaterials

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This contribution reports on the effect ofγ-irradiations on the structural and morphological properties of copper nanowires (Cu-NWs) within theγdoses 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 theγdose 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 (Cu2O) phases was observed at higherγdose. The mechanism of forming welded networks of Cu-NWs and Cu thin films is explained via the short and high energyγ-ray wavelengths which act on Cu-Cu molecular covalent bonds isotropically.

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Section: Journal Of Nanomaterialsmentioning

confidence: 99%