Abstract
We present model calculations to explore the possibility of colloidal island formation overstrained surfaces. Colloids, aggregating due to attractive depletion interactions, aredeposited onto a colloidal surface whose lattice constant and geometry can be varied byoptical forces. This allows precise control of the strain between the substrateand the colloidal adsorbate. Three different strain fields are considered: fieldswith either an unidirectional or a hexagonal variation of strain, and fields with acombination of both variations. We find that the unidirectional field induces theformation of infinitely extended ridges, while hexagonal strain fields lead to regularpyramidal island structures which can be distorted in a controlled way by addingthe unidirectional strain component. We furthermore study the dependence ofisland size on strain strength for the hexagonal strain pattern and find that thearea occupied by an island is a constant fraction of the strain field’s repeat unit.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
