engleski

SILVER, GOLD, AND PLATINUM DOPED ZINC OXIDE NANOPARTICLES PRODUCED BY PULSED LASER ABLATION IN WATER

Nanoparticles have a crucial role in nanotechnology thanks to their unique magnetic, electrical, mechanical, optical, and electronic properties compared to bulk materials. Zinc oxide (ZnO) is one of the most widely used materials with unique physical and chemical properties. Incorporating a new element in the ZnO crystal structure leads to enrichment of the electrical and optical properties and extends the area of its application. Pulsed laser ablation in liquid (PLAL) gained a lot of attention due to the simplicity, effectiveness, high purity, and fast production of nanoparticles. In this research, a simple two-step method for the synthesis of silver (Ag), gold (Au), and platinum (Pt) doped ZnO nanoparticles have been proposed. Using the pulsed laser deposition (PLD) technique, we produced targets where thin layers of metals (Ag, Pt, Au) have been deposited on a ZnO substrate. Such two- layer materials were used for targets in the pulsed laser ablation process producing a colloidal solution of doped ZnO nanoparticles (ZnO: Ag, ZnO: Au, and ZnO: Pt). 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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