| Autor: |
Senyuk, Bohdan, Evans, Julian S., Ackerman, Paul J., Lee, Taewoo, Manna, Pramit, Vigderman, Leonid, Zubarev, Eugene R., van de Lagemaat, Jao, Smalyukh, Ivan I. |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Nano Letters 12, 955-963 (2012) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1021/nl204030t |
| Popis: |
We demonstrate scaffolding of plasmonic nanoparticles by topological defects induced by colloidal microspheres to match their surface boundary conditions with a uniform far-field alignment in a liquid crystal host. Displacing energetically costly liquid crystal regions of reduced order, anisotropic nanoparticles with concave or convex shapes not only stably localize in defects but also self-orient with respect to the microsphere surface. Using laser tweezers, we manipulate the ensuing nanoparticle-microsphere colloidal dimers, probing the strength of elastic binding and demonstrating self-assembly of hierarchical colloidal superstructures such as chains and arrays. |
| Databáze: |
arXiv |
| Externí odkaz: |
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