Direct 3-D Nanoparticle Assemblies in Thin Films via Topographically Patterned Surfaces

摘要

Nanocomposites containing ordered 3-D arrays of nanoparticles (NPs) exhibit unique collective properties due to quantum confinement in individual particles as well as inter-particle coupling. Hierarchically structured 3-D NP assemblies with long-range order can lead to a new family of functional materials with tunable collective properties for a wide range of applications including nanoelectronics, plasmon-enhanced solar cells, plasmonic waveguides, photonic crystals, and memory storage. To pave the way for next-generation devices, there are critical needs for a versatile platform to precisely control the spatial organization of NPs over multiple length scales for structure-property correlation studies.