Article
Optical Properties of Self-Ensemble Monolayers of Gold Metallic Nanostructures
Autor
Rojas López, Marlon
Institución
Resumen
This work analyzes the optical properties of nanostructures metallic surfaces of gold, at different
sizes, in glass silanized substrates. Silanized substrates were immersed in the colloid solution for one and
half hour at room temperature and dried at room temperature for four hours. The optical properties were
analyzed by three spectroscopy techniques and by TEM microscopy. UVA^S was used to observe changes
in absorption due to the aminopropiltrimethoxysilane added to the glass substrate and due to the colloid
added to silanized substrate. Infrared vibrational spectroscopy in ATR mode was used to observe the new
generation peaks due to substrate silanization and SEIRA effect due to the colloid added to silanized
substrate. And finally Z-Scan technique was used to observe the nonlinear properties of these
funtionalization metallic nanostmctures in function of nanostructures size. TEM images confirm the sizes
observed in the UV/VIS spectra.