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Title: Blue-phase liquid crystal droplets

Abstract

Blue phases of liquid crystals represent unique ordered states of matter in which arrays of defects are organized into striking patterns. Most studies of blue phases to date have focused on bulk properties. In this work, we present a systematic study of blue phases confined into spherical droplets. It is found that, in addition to the so-called blue phases I and II, several new morphologies arise under confinement, with a complexity that increases with the chirality of the medium and with a nature that can be altered by surface anchoring. Through a combination of simulations and experiments, it is also found that one can control the wavelength at which blue-phase droplets absorb light by manipulating either their size or the strength of the anchoring, thereby providing a liquid–state analog of nanoparticles, where dimensions are used to control absorbance or emission. The results presented in this work also suggest that there are conditions where confinement increases the range of stability of blue phases, thereby providing intriguing prospects for applications.

Authors:
; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1235127
Grant/Contract Number:  
SC0004025
Resource Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Volume: 112 Journal Issue: 43; Journal ID: ISSN 0027-8424
Publisher:
Proceedings of the National Academy of Sciences
Country of Publication:
United States
Language:
English

Citation Formats

Martínez-González, José A., Zhou, Ye, Rahimi, Mohammad, Bukusoglu, Emre, Abbott, Nicholas L., and de Pablo, Juan J. Blue-phase liquid crystal droplets. United States: N. p., 2015. Web. doi:10.1073/pnas.1514251112.
Martínez-González, José A., Zhou, Ye, Rahimi, Mohammad, Bukusoglu, Emre, Abbott, Nicholas L., & de Pablo, Juan J. Blue-phase liquid crystal droplets. United States. doi:10.1073/pnas.1514251112.
Martínez-González, José A., Zhou, Ye, Rahimi, Mohammad, Bukusoglu, Emre, Abbott, Nicholas L., and de Pablo, Juan J. Mon . "Blue-phase liquid crystal droplets". United States. doi:10.1073/pnas.1514251112.
@article{osti_1235127,
title = {Blue-phase liquid crystal droplets},
author = {Martínez-González, José A. and Zhou, Ye and Rahimi, Mohammad and Bukusoglu, Emre and Abbott, Nicholas L. and de Pablo, Juan J.},
abstractNote = {Blue phases of liquid crystals represent unique ordered states of matter in which arrays of defects are organized into striking patterns. Most studies of blue phases to date have focused on bulk properties. In this work, we present a systematic study of blue phases confined into spherical droplets. It is found that, in addition to the so-called blue phases I and II, several new morphologies arise under confinement, with a complexity that increases with the chirality of the medium and with a nature that can be altered by surface anchoring. Through a combination of simulations and experiments, it is also found that one can control the wavelength at which blue-phase droplets absorb light by manipulating either their size or the strength of the anchoring, thereby providing a liquid–state analog of nanoparticles, where dimensions are used to control absorbance or emission. The results presented in this work also suggest that there are conditions where confinement increases the range of stability of blue phases, thereby providing intriguing prospects for applications.},
doi = {10.1073/pnas.1514251112},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 43,
volume = 112,
place = {United States},
year = {2015},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1073/pnas.1514251112

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Cited by: 10 works
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