Abstract
With the development of environmental consciousness, the production of metallic and non-metallic nanoparticles has gained importance with the green synthesis methods. In this study, graphene oxide copper nanoparticles (GO:Cu-NPs) have been synthesized by using a special bacterium in the form of a solution and formed GO:Cu thin films on p-Si substrates (GO: Cu/p-Si). Then, their optical, structural, morphological, and chemical composition properties of these thin film samples have been determined by ultraviolet–visible spectrophotometer (UV-VIS), XRD, FE-SEM, and EDS methods, respectively. UV-VIS measurements have shown that GO:Cu thin films have indirect band gap, Eg, with 1.78 eV. XRD measurements have revealed that thin film samples have a polycrystalline structure. Au/GO:Cu/p-Si/Al diode has been fabricated forming Au rectifying contact on GO:Cu/p-Si thin film and Al ohmic contact on the surface and investigated its I–V characteristics. The ideality factor of the devise was found 1.72 which is comparable with some results obtained from similar studies in literature.
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