pH-modulated self-assembly of colloidal nanoparticles in a dual-droplet inkjet printing process

摘要

Hypothesis: Interfacial self-assembly has been demonstrated as a powerful driving mechanism for creating various nanostructured assemblies. In this work, we employed a dual-droplet printing process and interfacial self-assembly mechanism to produce deposits with controlled assembly structures of colloidal nanoparticles. We hypothesize that pH modulation of the droplet will influence the interfacial self assembly through the multibody interactions, e.g. particle-particle, particle-interface, and particle substrate interactions, correspondingly affecting the deposition morphology of the colloidal nanoparticles.