DC Field | Value | Language |
---|---|---|
dc.contributor.author | Choi, KS | ko |
dc.contributor.author | Kim, HW | ko |
dc.contributor.author | Kim, YB | ko |
dc.contributor.author | Kim, Jong-Duk | ko |
dc.date.accessioned | 2013-03-04T13:55:38Z | - |
dc.date.available | 2013-03-04T13:55:38Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2004-05 | - |
dc.identifier.citation | LIQUID CRYSTALS, v.31, no.5, pp.639 - 647 | - |
dc.identifier.issn | 0267-8292 | - |
dc.identifier.uri | http://hdl.handle.net/10203/82854 | - |
dc.description.abstract | The alignment and optical properties of ferroelectric liquid crystal cells, having alignment films of a chalcone-based side chain polymer treated by linearly polarized UV irradiation were investigated. The long absorption band of the UV/Vis spectra gradually decreased and the FTIR spectra shifted as the irradiation times increased, indicating that cyclo-addition and isomerization reactions of the chalcone-based side chains occurred. UV dichroism demonstrated anisotropic changes in the alignment films, with a maximum at low exposure energy (0.5 J cm(-2)). Liquid crystal molecules were aligned perpendicular to the polarization direction of the linearly polarized UV radiation. The azimuthal anchoring energy of liquid crystal E7 on a chalcone-based side chain polymer surface increased with exposure energy. Well aligned defect-free cells and high contrast ratio were achieved with irradiation of longer than 5 min; the geometric conditions for a stable C2 structure may be satisfied at low temperature with slowly cooling. | - |
dc.language | English | - |
dc.publisher | TAYLOR & FRANCIS LTD | - |
dc.subject | DEEP UV-LIGHT | - |
dc.subject | PRETILT ANGLE | - |
dc.subject | SURFACE | - |
dc.subject | PHOTOALIGNMENT | - |
dc.subject | CHEVRON | - |
dc.subject | FILMS | - |
dc.subject | POLYMETHACRYLATES | - |
dc.subject | PHOTOREGULATION | - |
dc.subject | GENERATION | - |
dc.subject | DEFECT | - |
dc.title | Photo-dimerization of a chalcone-based side chain polymer for the alignment of ferroelectric liquid crystals | - |
dc.type | Article | - |
dc.identifier.wosid | 000221024400004 | - |
dc.identifier.scopusid | 2-s2.0-2942563931 | - |
dc.type.rims | ART | - |
dc.citation.volume | 31 | - |
dc.citation.issue | 5 | - |
dc.citation.beginningpage | 639 | - |
dc.citation.endingpage | 647 | - |
dc.citation.publicationname | LIQUID CRYSTALS | - |
dc.identifier.doi | 10.1080/02678290410001690410 | - |
dc.contributor.localauthor | Kim, Jong-Duk | - |
dc.contributor.nonIdAuthor | Choi, KS | - |
dc.contributor.nonIdAuthor | Kim, HW | - |
dc.contributor.nonIdAuthor | Kim, YB | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | DEEP UV-LIGHT | - |
dc.subject.keywordPlus | PRETILT ANGLE | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | PHOTOALIGNMENT | - |
dc.subject.keywordPlus | CHEVRON | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | POLYMETHACRYLATES | - |
dc.subject.keywordPlus | PHOTOREGULATION | - |
dc.subject.keywordPlus | GENERATION | - |
dc.subject.keywordPlus | DEFECT | - |
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