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Nanoparticles self-assembled into ring-shaped aggregates that were arranged in a two-dimensional (2D) hexagonal pattern. This hierarchic pattern was prepared by casting a toluene solution composed of polystyrene (PS) and Ag nanoparticles (NP). Dewetting of the thin composite layer induced the mesoscopic hexagonal array of PS–NP droplets. Within each dried droplet (dot), Ag nanoparticles self-assembled...
Layer structures of monolayer and multilayers composed of passivated silver (Ag) nanoparticles are analyzed using X-ray reflectivity (XR) measurements. In the XR profile of the monolayer, the ''Kiessig fringe'' is observed above the critical angle. A simple layer model is suitable for the nanoparticle layer structure in the low-angle region. A distinct quasi-Bragg reflection (QBR) due to the periodical...
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