Probing Interparticle Interaction and Doping in Nanomaterials

摘要

Understanding the fundamental interaction between nanoparticles that is critical to assembly of nanomaterials into superlattice structure for device applications.We have used strongly interacting Au nanoparticle aggregates as a model system for probing interparticle interaction.The structure of aggregates have been carefully characterized.We observed,for the first time,coherent vibrational oscillations of such nanoparticle aggregates based fs laser spectroscopy.