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Generation and Propagation of Flexoelectricity-Induced Solitons in Nematic Liquid Crystals.
Tang, Xingzhou; Atzin, Noe; Mozaffari, Ali; Das, Soumik; Abbott, Nicholas L; de Pablo, Juan J.
Afiliación
  • Tang X; Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, United States.
  • Atzin N; College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
  • Mozaffari A; Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, United States.
  • Das S; Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, United States.
  • Abbott NL; OpenEye Scientific, Cadence Molecular Sciences, Boston, Massachusetts 02114, United States.
  • de Pablo JJ; Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States.
ACS Nano ; 18(16): 10768-10775, 2024 Apr 23.
Article en En | MEDLINE | ID: mdl-38597971
ABSTRACT
Solitons in nematic liquid crystals facilitate the rapid transport and sensing in microfluidic systems. Little is known about the elementary conditions needed to create solitons in nematic materials. In this study, we apply a combination of theory, computational simulations, and experiments to examine the formation and propagation of solitary waves, or "solitons", in nematic liquid crystals under the influence of an alternating current (AC) electric field. We find that these solitary waves exhibit "butterfly"-like or "bullet"-like structures that travel in the direction perpendicular to the applied electric field. Such structures propagate over long distances without losing their initial shape. The theoretical framework adopted here helps identify several key factors leading to the formation of solitons in the absence of electrostatic interactions. These factors include surface irregularities, flexoelectric polarization, unequal elastic constants, and negative anisotropic dielectric permittivity. The results of simulations are shown to be in good agreement with our own experimental observations, serving to establish the validity of the theoretical concepts and ideas advanced in this work.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Nano Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Nano Año: 2024 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos