Ultrafast Laser-Induced Formation of Hollow Gold Nanorods and Their Optical Properties.

ABSTRACT: Laser irradiation has been shown to be an efficient means to modify structures and shapes of plasmonic nanoparticles for tuning their properties. Thermomechanical deformations of single-crystal and penta-twinned gold nanorods by femtosecond laser irradiations have been studied by classical molecular dynamics simulations. It is demonstrated that hollow gold nanorods could be formed by femtosecond laser irradiations under certain conditions of maximum temperatures in nanorods by laser heating and cooling rates due to the extrinsic solvent. For a given maximum temperature and cooling rate, a larger cavity is induced in the irradiated single-crystal nanorod. The results also indicate that at the same cooling rate a higher threshold of maximum temperature can be required for producing the cavit

SUBMITTER: Gan Y 

PROVIDER: S-EPMC9631759 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature