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RESEARCH PRODUCT
A novel method of nanocrystal fabrication based on laser ablation in liquid environment
Kamal AbderrafiE. JimenezJuan P. Martínez-pastorRafael IbáñezJ. L. ValdesRafael Abarguessubject
Materials scienceFabricationLaser ablationSiliconchemistry.chemical_elementCondensed Matter PhysicsLaser ablation synthesis in solutionSilver nitratechemistry.chemical_compoundchemistryChemical engineeringNanocrystalColloidal goldGeneral Materials ScienceElectrical and Electronic EngineeringPlasmondescription
Abstract Metal nanoparticles can be prepared by a novel technique that consists of the laser ablation of a solid target immersed in a water solution of a metal salt. Silicon was chosen as the most adequate target to synthesize silver and gold nanoparticles from a water solution of either AgNO3 or HAuCl4. The influence of both the silver nitrate concentrations and the irradiation time of the Si target on the optical properties of the Au and Ag nanoparticles have been investigated. The crystalline nature of the metal nanoparticles has been determined by X-ray diffraction (XRD). Average size and particle size distribution have been measured by means of TEM. The absorbance spectra show the characteristic band of the surface resonant plasmon of silver and gold nanoparticles.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-05-01 | Superlattices and Microstructures |