Photomodification of gold nanostars under nanosecond laser pulses

摘要

Gold nanostars are a new type of gold nanoparticles with tunable plasmonic properties used in laser-induced biomedical applications. We investigated the effect of nanosecond pulsed laser (1064 nm) on the photomodification of gold nanostars of various sizes using TEM and spectroscopy. Photomodification of gold nanostars strongly depends on the position of their plasmonic peak in the extinction spectrum.