Morphing of liquid crystal surfaces by emergent collectivity

Hanne M. van der Kooij, Slav A. Semerdzhiev, Jesse Buijs, Dirk J. Broer, Danqing Liu, Joris Sprakel (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Liquid crystal surfaces can undergo topographical morphing in response to external cues. These shape-shifting coatings promise a revolution in various applications, from haptic feedback in soft robotics or displays to self-cleaning solar panels. The changes in surface topography can be controlled by tailoring the molecular architecture and mechanics of the liquid crystal network. However, the nanoscopic mechanisms that drive morphological transitions remain unclear. Here, we introduce a frequency-resolved nanostrain imaging method to elucidate the emergent dynamics underlying field-induced shape-shifting. We show how surface morphing occurs in three distinct stages: (i) the molecular dipoles oscillate with the alternating field (10–100 ms), (ii) this leads to collective plasticization of the glassy network (~1 s), (iii) culminating in actuation of the topography (10–100 s). The first stage appears universal and governed by dielectric coupling. By contrast, yielding and deformation rely on a delicate balance between liquid crystal order, field properties and network viscoelasticity.

LanguageEnglish
Article number3501
Number of pages9
JournalNature Communications
Volume10
Issue number1
DOIs
StatePublished - 1 Dec 2019

Fingerprint

Liquid Crystals
crystal surfaces
liquid crystals
topography
viscoelasticity
cues
Viscoelasticity
Robotics
Surface topography
Mechanics
robotics
actuation
Topography
cleaning
Cues
Cleaning
Display devices
dipoles
Feedback
Imaging techniques

Cite this

van der Kooij, H. M., Semerdzhiev, S. A., Buijs, J., Broer, D. J., Liu, D., & Sprakel, J. (2019). Morphing of liquid crystal surfaces by emergent collectivity. Nature Communications, 10(1), [3501]. DOI: 10.1038/s41467-019-11501-5
van der Kooij, Hanne M. ; Semerdzhiev, Slav A. ; Buijs, Jesse ; Broer, Dirk J. ; Liu, Danqing ; Sprakel, Joris. / Morphing of liquid crystal surfaces by emergent collectivity. In: Nature Communications. 2019 ; Vol. 10, No. 1.
@article{4885e2dbf9c24df181cd9b6eb800924a,
title = "Morphing of liquid crystal surfaces by emergent collectivity",
abstract = "Liquid crystal surfaces can undergo topographical morphing in response to external cues. These shape-shifting coatings promise a revolution in various applications, from haptic feedback in soft robotics or displays to self-cleaning solar panels. The changes in surface topography can be controlled by tailoring the molecular architecture and mechanics of the liquid crystal network. However, the nanoscopic mechanisms that drive morphological transitions remain unclear. Here, we introduce a frequency-resolved nanostrain imaging method to elucidate the emergent dynamics underlying field-induced shape-shifting. We show how surface morphing occurs in three distinct stages: (i) the molecular dipoles oscillate with the alternating field (10–100 ms), (ii) this leads to collective plasticization of the glassy network (~1 s), (iii) culminating in actuation of the topography (10–100 s). The first stage appears universal and governed by dielectric coupling. By contrast, yielding and deformation rely on a delicate balance between liquid crystal order, field properties and network viscoelasticity.",
author = "{van der Kooij}, {Hanne M.} and Semerdzhiev, {Slav A.} and Jesse Buijs and Broer, {Dirk J.} and Danqing Liu and Joris Sprakel",
year = "2019",
month = "12",
day = "1",
doi = "10.1038/s41467-019-11501-5",
language = "English",
volume = "10",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
number = "1",

}

van der Kooij, HM, Semerdzhiev, SA, Buijs, J, Broer, DJ, Liu, D & Sprakel, J 2019, 'Morphing of liquid crystal surfaces by emergent collectivity' Nature Communications, vol. 10, no. 1, 3501. DOI: 10.1038/s41467-019-11501-5

Morphing of liquid crystal surfaces by emergent collectivity. / van der Kooij, Hanne M.; Semerdzhiev, Slav A.; Buijs, Jesse; Broer, Dirk J.; Liu, Danqing; Sprakel, Joris (Corresponding author).

In: Nature Communications, Vol. 10, No. 1, 3501, 01.12.2019.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Morphing of liquid crystal surfaces by emergent collectivity

AU - van der Kooij,Hanne M.

AU - Semerdzhiev,Slav A.

AU - Buijs,Jesse

AU - Broer,Dirk J.

AU - Liu,Danqing

AU - Sprakel,Joris

PY - 2019/12/1

Y1 - 2019/12/1

N2 - Liquid crystal surfaces can undergo topographical morphing in response to external cues. These shape-shifting coatings promise a revolution in various applications, from haptic feedback in soft robotics or displays to self-cleaning solar panels. The changes in surface topography can be controlled by tailoring the molecular architecture and mechanics of the liquid crystal network. However, the nanoscopic mechanisms that drive morphological transitions remain unclear. Here, we introduce a frequency-resolved nanostrain imaging method to elucidate the emergent dynamics underlying field-induced shape-shifting. We show how surface morphing occurs in three distinct stages: (i) the molecular dipoles oscillate with the alternating field (10–100 ms), (ii) this leads to collective plasticization of the glassy network (~1 s), (iii) culminating in actuation of the topography (10–100 s). The first stage appears universal and governed by dielectric coupling. By contrast, yielding and deformation rely on a delicate balance between liquid crystal order, field properties and network viscoelasticity.

AB - Liquid crystal surfaces can undergo topographical morphing in response to external cues. These shape-shifting coatings promise a revolution in various applications, from haptic feedback in soft robotics or displays to self-cleaning solar panels. The changes in surface topography can be controlled by tailoring the molecular architecture and mechanics of the liquid crystal network. However, the nanoscopic mechanisms that drive morphological transitions remain unclear. Here, we introduce a frequency-resolved nanostrain imaging method to elucidate the emergent dynamics underlying field-induced shape-shifting. We show how surface morphing occurs in three distinct stages: (i) the molecular dipoles oscillate with the alternating field (10–100 ms), (ii) this leads to collective plasticization of the glassy network (~1 s), (iii) culminating in actuation of the topography (10–100 s). The first stage appears universal and governed by dielectric coupling. By contrast, yielding and deformation rely on a delicate balance between liquid crystal order, field properties and network viscoelasticity.

UR - http://www.scopus.com/inward/record.url?scp=85070231764&partnerID=8YFLogxK

U2 - 10.1038/s41467-019-11501-5

DO - 10.1038/s41467-019-11501-5

M3 - Article

VL - 10

JO - Nature Communications

T2 - Nature Communications

JF - Nature Communications

SN - 2041-1723

IS - 1

M1 - 3501

ER -

van der Kooij HM, Semerdzhiev SA, Buijs J, Broer DJ, Liu D, Sprakel J. Morphing of liquid crystal surfaces by emergent collectivity. Nature Communications. 2019 Dec 1;10(1). 3501. Available from, DOI: 10.1038/s41467-019-11501-5