Photo deformation in azobenzene liquid-crystal network: Multiscale model prediction and its validation
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Yun, Jung-Hoon | - |
dc.contributor.author | Li, Chenzhe | - |
dc.contributor.author | Chung, Hayoung | - |
dc.contributor.author | Choi, Joonmyung | - |
dc.contributor.author | Cho, Maenghyo | - |
dc.date.accessioned | 2021-06-23T05:23:48Z | - |
dc.date.available | 2021-06-23T05:23:48Z | - |
dc.date.created | 2021-01-22 | - |
dc.date.issued | 2015-09 | - |
dc.identifier.issn | 0032-3861 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/30533 | - |
dc.description.abstract | Azobenzene liquid-crystal networks (LCNs) are well known for their photo-deformation, shrinking in UV light, and reverting to their original shape in visible light. Such reversible deformation is due to trans-cis photoisomerization of the azobenzene monomer, which disturbs well-aligned order of nematic LCN. In order to predict the photo-strain of azobenzene LCNs in multiple conditions (light intensity, polarization angle, and temperature), we propose using a density functional theory (DFT)-based modeling approach, which integrates stimulated Raman adiabatic passage calculations (STIRAP), non-linear Beer's law, and polymer physics. The model predicts that as the azobenzene ratio increases, the penetration depth of photo strain decreases, whereas the shrinkage ratio of the LCN in the unit cell increases. We identify that this opposite tendency of change is the reason why there is bending limit during the photo bending of azobenzene LCN films when increasing the ratio of the azobenzene monomer, which was also measured in experimental data. © 2015 Elsevier Ltd. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier BV | - |
dc.title | Photo deformation in azobenzene liquid-crystal network: Multiscale model prediction and its validation | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Joonmyung | - |
dc.identifier.doi | 10.1016/j.polymer.2015.08.013 | - |
dc.identifier.scopusid | 2-s2.0-84940055609 | - |
dc.identifier.wosid | 000361879300007 | - |
dc.identifier.bibliographicCitation | Polymer, v.75, pp.51 - 56 | - |
dc.relation.isPartOf | Polymer | - |
dc.citation.title | Polymer | - |
dc.citation.volume | 75 | - |
dc.citation.startPage | 51 | - |
dc.citation.endPage | 56 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | LIGHT-INDUCED DEFORMATIONCIS PHOTOISOMERIZATIONNEMATIC ELASTOMERSPOLYMER NETWORKSDYNAMICSMOTIONFILMSACTUATORSMECHANISMGLASSY | - |
dc.subject.keywordPlus | Calculations | - |
dc.subject.keywordPlus | Deformation | - |
dc.subject.keywordPlus | Density functional theory | - |
dc.subject.keywordPlus | Isomerization | - |
dc.subject.keywordPlus | Light | - |
dc.subject.keywordPlus | Liquid crystals | - |
dc.subject.keywordPlus | Monomers | - |
dc.subject.keywordPlus | Shrinkage | - |
dc.subject.keywordPlus | Ab initio calculations | - |
dc.subject.keywordPlus | Azobenzene liquid crystals | - |
dc.subject.keywordPlus | Azobenzene monomers | - |
dc.subject.keywordPlus | Liquid crystal networks | - |
dc.subject.keywordPlus | Multi-scale Modeling | - |
dc.subject.keywordPlus | Polarization angle | - |
dc.subject.keywordPlus | Reversible deformation | - |
dc.subject.keywordPlus | Stimulated Raman adiabatic passage | - |
dc.subject.keywordPlus | Azobenzene | - |
dc.subject.keywordAuthor | Ab initio calculations | - |
dc.subject.keywordAuthor | Azobenzene | - |
dc.subject.keywordAuthor | Isomerization | - |
dc.subject.keywordAuthor | Liquid crystal network | - |
dc.subject.keywordAuthor | Photo deformation | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S003238611530152X?via%3Dihub | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
55 Hanyangdeahak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Korea+82-31-400-4269 sweetbrain@hanyang.ac.kr
COPYRIGHT © 2021 HANYANG UNIVERSITY. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.