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Title: Shape-Dependent Oriented Trapping and Scaffolding of Plasmonic Nanoparticles by Topological Defects for Self-Assembly of Colloidal Dimers in Liquid Crystals

Abstract

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.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Science, Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences
OSTI Identifier:
1039092
Report Number(s):
NREL/JA-5900-53888
TRN: US201209%%155
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Journal Article
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 12; Journal Issue: 2
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; BOUNDARY CONDITIONS; COLLOIDS; DEFECTS; DIMERS; ELASTICITY; LASERS; LIQUID CRYSTALS; MICROSPHERES; TRAPPING; plasmonic nanoparticles; nanoscale self-assembly; liquid crystal elasticity; colloids

Citation Formats

Senyuk, Bohdan, Evans, Julian S., Ackerman, Paul J., Lee, Taewoo, Manna, Pramit, Vigderman, Leonid, Zubarey, Eugene. R., van de Lagemaat, Jao, and Smalyukh, Ivan I. Shape-Dependent Oriented Trapping and Scaffolding of Plasmonic Nanoparticles by Topological Defects for Self-Assembly of Colloidal Dimers in Liquid Crystals. United States: N. p., 2012. Web. doi:10.1021/nl204030t.
Senyuk, Bohdan, Evans, Julian S., Ackerman, Paul J., Lee, Taewoo, Manna, Pramit, Vigderman, Leonid, Zubarey, Eugene. R., van de Lagemaat, Jao, & Smalyukh, Ivan I. Shape-Dependent Oriented Trapping and Scaffolding of Plasmonic Nanoparticles by Topological Defects for Self-Assembly of Colloidal Dimers in Liquid Crystals. United States. https://doi.org/10.1021/nl204030t
Senyuk, Bohdan, Evans, Julian S., Ackerman, Paul J., Lee, Taewoo, Manna, Pramit, Vigderman, Leonid, Zubarey, Eugene. R., van de Lagemaat, Jao, and Smalyukh, Ivan I. Wed . "Shape-Dependent Oriented Trapping and Scaffolding of Plasmonic Nanoparticles by Topological Defects for Self-Assembly of Colloidal Dimers in Liquid Crystals". United States. https://doi.org/10.1021/nl204030t.
@article{osti_1039092,
title = {Shape-Dependent Oriented Trapping and Scaffolding of Plasmonic Nanoparticles by Topological Defects for Self-Assembly of Colloidal Dimers in Liquid Crystals},
author = {Senyuk, Bohdan and Evans, Julian S. and Ackerman, Paul J. and Lee, Taewoo and Manna, Pramit and Vigderman, Leonid and Zubarey, Eugene. R. and van de Lagemaat, Jao and Smalyukh, Ivan I.},
abstractNote = {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.},
doi = {10.1021/nl204030t},
url = {https://www.osti.gov/biblio/1039092}, journal = {Nano Letters},
number = 2,
volume = 12,
place = {United States},
year = {2012},
month = {2}
}