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The role of laser fluence on the properties of graphene/CuO nanocomposite, prepared by pulsed laser ablation method was studied experimentally. Ablation processes were carried out with the fundamental wavelength of a Q-switched Nd:YAG laser. First, the graphene nanosheets were synthesized by irradiation of a graphite target in distilled water. Then, a Cu target was irradiated by the same laser pulses in the graphene suspension. Three samples of graphene/CuO nanocomposites were formed by different fluences of laser pulse. Results indicate that decoration of graphene with CuO nanoparticles was performed in all nanocomposite samples. As the laser fluence increased, adhesion of graphene nanosheets was enhanced, and the size of CuO nanoparticles was decreased, while the rate of their production was increased. According to the results, it can be concluded that the laser fluence is an effective tool to control the characteristics of laser ablation produced nanocomposites.

Laser ablation assisted synthesis of graphene/CuO nanocomposite: effect of laser fluence