Abstract
Metallic nanowires (MNWs) are of particular interest as transparent electrodes (TEs) in optoelectronic devices due to their outstanding and unique optical, electrical and mechanical capabilities. In present research, we systematically studied the influence of gamma radiations (γ-radiations) on silver nanowires (AgNWs). We irradiated AgNWs with various doses of γ-radiations ranging between 12 kGy and 20 kGy. After irradiation, we studied the structural properties of un-irradiated and γ-irradiated AgNWs via X-ray diffraction (XRD). The XRD analysis of un-irradiated sample confirmed the pure crystalline metallic nature of un-irradiated AgNWs with crystallite size 29.80 nm. The XRD analysis of irradiated samples revealed the face centered cubic (FCC) crystalline structure at all doses of γ-radiations. The crystallite sizes have been observed to be 31.99 nm, 33.94 nm and 32.56 nm for samples irradiated by γ-radiations of doses 12 kGy, 15 kGy and 20 kGy respectively. XRD data was also used to investigate structural factors such as dislocation density and strain in material. Morphological studies were carried out via transmission electron microscopy (TEM). The TEM images revealed that silver nanoparticles (AgNPs) are formed on outer surfaces of AgNWs after γ-irradiation. After γ-irradiation, optical transmittances have been enhanced up to dose 15 kGy which is might be due to formation of NPs on Ag-NWs.
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