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Description
Among the various transition metal oxide semiconductor nanomaterials, cupric oxide (CuO) is getting attention due to low cost, easy synthesis, and its attractive physical/chemical properties. CuO is considered as a p-type semiconductor due to the presence of copper vacancies and has narrow band gap of ~1.4 eV. Thus, CuO nanostructure is used as various electronic applications such as solar cells, photovoltaics, supercapacitors, light-emitting diodes, and photodetectors.
In our work, we successfully synthesized CuO nanowires (NWs) by laser induced hydrothermal growth (LIHG). Since, compared to conventional NWs growth methods including Chemical Vapor Deposition, LIHG process can produce localized and selective synthesis, cupric oxide NWs are selectively grown on the desired position of micro metal pattern. Finally, through LIHG process, we fabricated CuO NWs-based micro photodetector.
