Localized Plasmon resonance in metal nanoparticles using Mie theory
| Autor: | J.S. Blandón, J.S. Duque, Henry Riascos |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
History Materials science Mie scattering Surface plasmon Analytical chemistry Nanoparticle Resonance 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Light scattering Computer Science Applications Education 0103 physical sciences Surface plasmon resonance 0210 nano-technology Spectroscopy Localized surface plasmon |
| Zdroj: | Journal of Physics: Conference Series. 850:012017 |
| ISSN: | 1742-6596 1742-6588 |
| DOI: | 10.1088/1742-6596/850/1/012017 |
| Popis: | In this work, scattering light by colloidal metal nanoparticles with spherical shape was studied. Optical properties such as diffusion efficiencies of extinction and absorption Q ext and Q abs were calculated using Mie theory. We employed a MATLAB program to calculate the Mie efficiencies and the radial dependence of electric field intensities emitted for colloidal metal nanoparticles (MNPs). By UV-Vis spectroscopy we have determined the LSPR for Cu nanoparticles (CuNPs), Ni nanoparticles (NiNPs) and Co nanoparticles (CoNPs) grown by laser ablation technique. The peaks of resonances appear in 590nm, 384nm and 350nm for CuNPs, NiNPs and CoNPs respectively suspended in water. Changing the medium to acetone and ethanol we observed a shift of the resonance peaks, these values agreed with our simulations results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|