Generation And Assembly Of Spheroid-like Particles

摘要

This communication presents a straightforward approach in generating spheroid-like particles through a unidirectional chemical etching process. Manipulation of the etching profile can also generate nonspherical particles with other geometries. The spheroid-like particles generated are uniform in size and shape so it is feasible to use them in the evaporation assisted assembly process. The initial observation of the self-assembly structure of these particles showed a counterintuitive orientational order in the monolayer with their long axis perpendicular to the substrate.