Nucleation and growth of a helical nanofilament (B4) liquid-crystal phase confined in nanobowls

Seong Ho Ryu; Hanim Kim; Sunhee Lee; Yun Jeong Cha; Tae Joo Shin; Hyungju Ahn; Eva Korblova; David M. Walba; Noel A. Clark; Sang Bok Lee; Dong Ki Yoon

doi:10.1039/c5sm01783a

Nucleation and growth of a helical nanofilament (B4) liquid-crystal phase confined in nanobowls

Seong Ho Ryu, Hanim Kim, Sunhee Lee, Yun Jeong Cha, Tae Joo Shin, Hyungju Ahn, Eva Korblova, David M. Walba, Noel A. Clark, Sang Bok Lee, Dong Ki Yoon

Chemical Engineering and Materials Science

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Abstract

The B4 helical nanofilament (HNF) liquid crystal (LC) phase is a three-dimensional (3D) helical structure composed of 2D smectic layers. Because of the complex shape of the HNF phase, it is difficult to understand the generation mechanism of HNFs in the bulk as well as in the thin-film condition. Here, we directly investigated the nucleation and growth of HNFs in nanobowls. A combination of electron microscopy and X-ray diffraction was used to reveal the transitional surface structures, in which barrel-like structures as well as short HNFs with random handedness were observed, depending on the LC film thickness. These results will be useful in achieving a better understanding of thin film structures of complex chiral structures in soft matter.

Original language	English (US)
Pages (from-to)	7778-7782
Number of pages	5
Journal	Soft Matter
Volume	11
Issue number	39
DOIs	https://doi.org/10.1039/c5sm01783a
State	Published - Aug 18 2015

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title = "Nucleation and growth of a helical nanofilament (B4) liquid-crystal phase confined in nanobowls",

abstract = "The B4 helical nanofilament (HNF) liquid crystal (LC) phase is a three-dimensional (3D) helical structure composed of 2D smectic layers. Because of the complex shape of the HNF phase, it is difficult to understand the generation mechanism of HNFs in the bulk as well as in the thin-film condition. Here, we directly investigated the nucleation and growth of HNFs in nanobowls. A combination of electron microscopy and X-ray diffraction was used to reveal the transitional surface structures, in which barrel-like structures as well as short HNFs with random handedness were observed, depending on the LC film thickness. These results will be useful in achieving a better understanding of thin film structures of complex chiral structures in soft matter.",

author = "Ryu, {Seong Ho} and Hanim Kim and Sunhee Lee and Cha, {Yun Jeong} and Shin, {Tae Joo} and Hyungju Ahn and Eva Korblova and Walba, {David M.} and Clark, {Noel A.} and Lee, {Sang Bok} and Yoon, {Dong Ki}",

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T1 - Nucleation and growth of a helical nanofilament (B4) liquid-crystal phase confined in nanobowls

AU - Ryu, Seong Ho

AU - Kim, Hanim

AU - Lee, Sunhee

AU - Cha, Yun Jeong

AU - Shin, Tae Joo

AU - Ahn, Hyungju

AU - Korblova, Eva

AU - Walba, David M.

AU - Clark, Noel A.

AU - Lee, Sang Bok

AU - Yoon, Dong Ki

PY - 2015/8/18

Y1 - 2015/8/18

N2 - The B4 helical nanofilament (HNF) liquid crystal (LC) phase is a three-dimensional (3D) helical structure composed of 2D smectic layers. Because of the complex shape of the HNF phase, it is difficult to understand the generation mechanism of HNFs in the bulk as well as in the thin-film condition. Here, we directly investigated the nucleation and growth of HNFs in nanobowls. A combination of electron microscopy and X-ray diffraction was used to reveal the transitional surface structures, in which barrel-like structures as well as short HNFs with random handedness were observed, depending on the LC film thickness. These results will be useful in achieving a better understanding of thin film structures of complex chiral structures in soft matter.

AB - The B4 helical nanofilament (HNF) liquid crystal (LC) phase is a three-dimensional (3D) helical structure composed of 2D smectic layers. Because of the complex shape of the HNF phase, it is difficult to understand the generation mechanism of HNFs in the bulk as well as in the thin-film condition. Here, we directly investigated the nucleation and growth of HNFs in nanobowls. A combination of electron microscopy and X-ray diffraction was used to reveal the transitional surface structures, in which barrel-like structures as well as short HNFs with random handedness were observed, depending on the LC film thickness. These results will be useful in achieving a better understanding of thin film structures of complex chiral structures in soft matter.

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JO - Soft Matter

JF - Soft Matter

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ER -

Nucleation and growth of a helical nanofilament (B4) liquid-crystal phase confined in nanobowls

Abstract

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