Colloidal spherocylinders at an interface: Flipper dynamics and bilayer formation

T. Li, G. Brandani, D. Marenduzzo, P.S. Clegg

Research output: Contribution to journalArticlepeer-review


We study the response of a film of colloidal spherocylinders to compression by combining pressure-area isotherm measurements, microscopy, and computer simulations. We find that the behavior of the film depends strongly on the geometry of the particles. For a small aspect ratio, a uniform monolayer forms and then buckles. For a higher aspect ratio, particles flip to orient perpendicular to the interface; we show that flipping occurs in locations where the nematic ordering is low. Our experiments and simulations further demonstrate that the longest particles rearrange to self-assemble a colloidal bilayer, which is stable due to the unique geometry of spherocylinders at an interface.
Original languageEnglish
Article number018001
Number of pages5
JournalPhysical Review Letters
Issue number1
Publication statusPublished - 6 Jul 2017


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