Synthesis of Nanometer Diameter Particles and Measurement of Particle-Particle and Particle Substrate Interactions

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It is proposed a gas aggregation method for synthesis of useful amounts of size-selected nanoscale clusters and to explore the assembly of such clusters into potentially novel materials. One goal of the proposed research is to develop the aerosol source capable of producing kilograms per hour of the nanoscale metal and metal oxide clusters and to demonstrate practical methods for recovery and accumulation of these particles. A second goal is to develop atomic force microscopy methods to measure the forces exerted by nanoscale clusters on each other and between these particles and solid substrates. Molecular dynamics simulations will also be performed to interpret the experimental results that will be obtained. The proposed approach may lead to new products and processes for advanced materials.