Self-assembly of two-dimensional colloidal clusters by tuning the hydrophobicity, composition, and packing geometry

Law, Adam D.; Auriol, Mélodie; Smith, Dean; Horozov, Tommy S.; Buzza, D. Martin A.

Abstract

We study the structure of binary monolayers of large (3 m diameter) very hydrophobic (A) and large (3 m diameter) hydrophilic (B) or small (1 m diameter) hydrophilic (C) silica particles at an octanewater interface. By tuning the composition and packing geometry of the mixed monolayer, we ?nd that a rich variety of two-dimensional hexagonal superlattices of mixed A=B or A=C clusters are formed, stabilized by short-ranged electrostatic induced dipole interactions. The cluster structures obtained are in excellent agreement with zero temperature calculations, indicating that the self-assembly process can be effectively controlled.

Citation

Law, A. D., Auriol, M., Smith, D., Horozov, T. S., & Buzza, D. M. A. (2013). Self-assembly of two-dimensional colloidal clusters by tuning the hydrophobicity, composition, and packing geometry. Physical review letters, 110(13), 0 - 0. https://doi.org/10.1103/physrevlett.110.138301

• Journal Article Type: Article
• Acceptance Date: Mar 25, 2013
• Online Publication Date: Mar 25, 2013
• Publication Date: Mar 25, 2013
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 110
• Issue: 13
• Article Number: 138301
• Pages: 0 - 0
• DOI: https://doi.org/10.1103/physrevlett.110.138301
• Keywords: General Physics and Astronomy
• Public URL: https://hull-repository.worktribe.com/output/429264