The proper assembly of nanoparticles can enhance their properties and improve their applicability. Likewise, imprudent assembly can damage the unique properties of the nanomaterials. Accordingly, finding robust techniques for making ordered assemblies of nanoparticles is a hot topic in materials science research. Langmuir-Blodgett (LB) technique was used to assemble polymer-functionalized gold particles (AuNPs) into highly packed 2D arrays with different structures. This technique is based on creating polymeric micelles within the AuNPs monolayer, which drives the nanoparticles to assemble into a highly packed structure even at low LB surface pressures. Interestingly, the micelles could be made more diffuse by changing the LB trough surface pressure, which allowed for tuning the width and the structure of the AuNP 2D arrays. The areas occupied by the micelles appeared as voids that separated the AuNP arrays and prevented the formation of a uniform monolayer of AuNPs.

Engineering the optical properties of gold nanoparticles by assembling into highly packed 2D arrays of different structure

249th National Meeting (2015)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.