Do small molecules assemble at topological defects of a liquid crystal?

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

It is well known that topological defects of a liquid crystal can trap colloidal particles and polymers. However, it remains unclear whether low-molecular-weight (LMW) non-LC molecules can aggregate at topological defects, because entropy towards uniform distributions becomes more dominant for smaller molecules. We show by a simple theoretical argument that topological defects indeed give rise to non-uniform distributions of such LMW guest molecules. The relaxation of the high free energy density of topological defects by the presence of LMW guest molecules is strong enough to overcome the contribution of entropy. We briefly discuss the relevance of our theoretical arguments to experiments.

Original languageEnglish
Title of host publicationEmerging Liquid Crystal Technologies XII 2017
EditorsLiang-Chy Chien
PublisherSPIE
ISBN (Electronic)9781510606913
DOIs
Publication statusPublished - Jan 1 2017
Event2017 Emerging Liquid Crystal Technologies XII Conference, ELCT 2017 - San Francisco, United States
Duration: Jan 31 2017Feb 2 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10125
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

Other2017 Emerging Liquid Crystal Technologies XII Conference, ELCT 2017
CountryUnited States
CitySan Francisco
Period1/31/172/2/17

Fingerprint

Liquid Crystals
Topological Defects
Liquid Crystal
Liquid crystals
low molecular weights
liquid crystals
Molecules
Defects
Molecular weight
defects
molecules
Entropy
entropy
Uniform distribution
Trap
Energy Density
Free energy
High Energy
Free Energy
Polymers

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Fukuda, J. I. (2017). Do small molecules assemble at topological defects of a liquid crystal? In L-C. Chien (Ed.), Emerging Liquid Crystal Technologies XII 2017 [101250C] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10125). SPIE. https://doi.org/10.1117/12.2256541

Do small molecules assemble at topological defects of a liquid crystal? / Fukuda, Jun Ichi.

Emerging Liquid Crystal Technologies XII 2017. ed. / Liang-Chy Chien. SPIE, 2017. 101250C (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10125).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fukuda, JI 2017, Do small molecules assemble at topological defects of a liquid crystal? in L-C Chien (ed.), Emerging Liquid Crystal Technologies XII 2017., 101250C, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10125, SPIE, 2017 Emerging Liquid Crystal Technologies XII Conference, ELCT 2017, San Francisco, United States, 1/31/17. https://doi.org/10.1117/12.2256541
Fukuda JI. Do small molecules assemble at topological defects of a liquid crystal? In Chien L-C, editor, Emerging Liquid Crystal Technologies XII 2017. SPIE. 2017. 101250C. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.2256541
Fukuda, Jun Ichi. / Do small molecules assemble at topological defects of a liquid crystal?. Emerging Liquid Crystal Technologies XII 2017. editor / Liang-Chy Chien. SPIE, 2017. (Proceedings of SPIE - The International Society for Optical Engineering).
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