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Stabilization of liquid crystal blue phases by carbon nanoparticles of varying dimensionality

The thermal stabilization of blue phases is a subject that has been of scientific and technological interest since their discovery. Meanwhile, carbonaceous nanomaterials such as C60 fullerenes, carbon nanotubes and graphene have generated interdisciplinary interest spanning across solid-state physic...

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Autores principales: Draude, Adam P., Kalavalapalli, Tejas Y., Iliut, Maria, McConnell, Ben, Dierking, Ingo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: RSC 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419272/
https://www.ncbi.nlm.nih.gov/pubmed/36133386
http://dx.doi.org/10.1039/d0na00276c
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author Draude, Adam P.
Kalavalapalli, Tejas Y.
Iliut, Maria
McConnell, Ben
Dierking, Ingo
author_facet Draude, Adam P.
Kalavalapalli, Tejas Y.
Iliut, Maria
McConnell, Ben
Dierking, Ingo
author_sort Draude, Adam P.
collection PubMed
description The thermal stabilization of blue phases is a subject that has been of scientific and technological interest since their discovery. Meanwhile, carbonaceous nanomaterials such as C60 fullerenes, carbon nanotubes and graphene have generated interdisciplinary interest spanning across solid-state physics, organic chemistry, colloids, all the way to soft matter physics. Herein, the stabilization of liquid crystal blue phases by doping with C60, single-walled carbon nanotubes and graphene oxide is described. All three types of particles are found to extend the combined temperature range of blue phases I and II by a factor of ∼5. Furthermore, mixtures of pairs of different materials, and all three types are shown to stabilize the blue phases. The temperature range of the blue phases is shown to grow at the expense of the cholesteric phase. This leads to a blue phase-cholesteric-smecticA phase triple-point in all cases except that of doping with carbon nanotubes. The mechanisms of this thermal stabilization are discussed in light of theoretical descriptions for other established systems.
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spelling pubmed-94192722022-09-20 Stabilization of liquid crystal blue phases by carbon nanoparticles of varying dimensionality Draude, Adam P. Kalavalapalli, Tejas Y. Iliut, Maria McConnell, Ben Dierking, Ingo Nanoscale Adv Chemistry The thermal stabilization of blue phases is a subject that has been of scientific and technological interest since their discovery. Meanwhile, carbonaceous nanomaterials such as C60 fullerenes, carbon nanotubes and graphene have generated interdisciplinary interest spanning across solid-state physics, organic chemistry, colloids, all the way to soft matter physics. Herein, the stabilization of liquid crystal blue phases by doping with C60, single-walled carbon nanotubes and graphene oxide is described. All three types of particles are found to extend the combined temperature range of blue phases I and II by a factor of ∼5. Furthermore, mixtures of pairs of different materials, and all three types are shown to stabilize the blue phases. The temperature range of the blue phases is shown to grow at the expense of the cholesteric phase. This leads to a blue phase-cholesteric-smecticA phase triple-point in all cases except that of doping with carbon nanotubes. The mechanisms of this thermal stabilization are discussed in light of theoretical descriptions for other established systems. RSC 2020-05-01 /pmc/articles/PMC9419272/ /pubmed/36133386 http://dx.doi.org/10.1039/d0na00276c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Draude, Adam P.
Kalavalapalli, Tejas Y.
Iliut, Maria
McConnell, Ben
Dierking, Ingo
Stabilization of liquid crystal blue phases by carbon nanoparticles of varying dimensionality
title Stabilization of liquid crystal blue phases by carbon nanoparticles of varying dimensionality
title_full Stabilization of liquid crystal blue phases by carbon nanoparticles of varying dimensionality
title_fullStr Stabilization of liquid crystal blue phases by carbon nanoparticles of varying dimensionality
title_full_unstemmed Stabilization of liquid crystal blue phases by carbon nanoparticles of varying dimensionality
title_short Stabilization of liquid crystal blue phases by carbon nanoparticles of varying dimensionality
title_sort stabilization of liquid crystal blue phases by carbon nanoparticles of varying dimensionality
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9419272/
https://www.ncbi.nlm.nih.gov/pubmed/36133386
http://dx.doi.org/10.1039/d0na00276c
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