engleski

SYNTHESIS OF SILVER, GOLD, AND PLATINUM DOPED ZINC OXIDE NANOPARTICLES BY PULSED LASER ABLATION

In nanotechnology, nanoparticles have a crucial role due to their exceptional magnetic, electrical, mechanical, optical, and electronic properties with respect to the bulk materials. Zinc oxide (ZnO) is one of the most prominent and widely used n-type semiconductors with unique physicochemical properties. Implementing a new element in the crystal structure of ZnO leads to enrichment of the electrical and optical properties and broadens the area of its application. Pulsed laser ablation in liquid (PLAL) is a simple and effective method yielding high purity nanoparticles with a fast production rate [1, 2]. In this work, a newly developed synthesis method for silver (Ag), gold (Au), and platinum (Pt) doped ZnO nanoparticles is presented. The method is based on the combination of pulsed laser deposition (PLD) and PLAL techniques. With PLD, metal (Ag, Au, Pt) thin layers were deposited on ZnO substrates. Such formed two-layer structures were used as a target for the doped nanoparticles (ZnO: Ag, ZnO: Au, and ZnO: Pt) production by pulsed laser ablation in water. The optical properties, crystalline structure, elemental composition, morphology, and nanoparticle size distribution were studied using UV-VIS spectrophotometer, X-ray diffraction (XRD), X-ray spectroscopy (XPS), and scanning electron microscope (SEM), respectively.

nanoparticles, ZnO, noble metals, doping ZnO, pulsed laser ablation, pulsed laser deposition

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