Monitoring surface molecular order in discotic liquid crystals

Polarized confocal Raman spectroscopy is used to monitor surface molecular alignment in a droplet of a prototype discotic liquid crystal. We show that polarization selection rules of Raman active modes can be used to infer molecular alignment along specific directions in situations where no other ex...

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Main Authors: Burhanudin, Zainal Arif, Etchegoin, Pablo
Format: Article
Published: 2001
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Online Access:http://www.sciencedirect.com/science/article/pii/S000926140100094X
http://eprints.utp.edu.my/7916/
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Institution: Universiti Teknologi Petronas
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spelling my.utp.eprints.79162012-08-14T03:08:55Z Monitoring surface molecular order in discotic liquid crystals Burhanudin, Zainal Arif Etchegoin, Pablo QC Physics Polarized confocal Raman spectroscopy is used to monitor surface molecular alignment in a droplet of a prototype discotic liquid crystal. We show that polarization selection rules of Raman active modes can be used to infer molecular alignment along specific directions in situations where no other experimental technique is available. Substrate-induced planar alignment along the wetting edge of a droplet, as well as molecular orientation around topological surface defects are explicitly shown. 2001-03-09 Article PeerReviewed http://www.sciencedirect.com/science/article/pii/S000926140100094X Burhanudin, Zainal Arif and Etchegoin, Pablo (2001) Monitoring surface molecular order in discotic liquid crystals. Chemical Physics Letters, 336 (1-2). pp. 7-12. http://eprints.utp.edu.my/7916/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic QC Physics
spellingShingle QC Physics
Burhanudin, Zainal Arif
Etchegoin, Pablo
Monitoring surface molecular order in discotic liquid crystals
description Polarized confocal Raman spectroscopy is used to monitor surface molecular alignment in a droplet of a prototype discotic liquid crystal. We show that polarization selection rules of Raman active modes can be used to infer molecular alignment along specific directions in situations where no other experimental technique is available. Substrate-induced planar alignment along the wetting edge of a droplet, as well as molecular orientation around topological surface defects are explicitly shown.
format Article
author Burhanudin, Zainal Arif
Etchegoin, Pablo
author_facet Burhanudin, Zainal Arif
Etchegoin, Pablo
author_sort Burhanudin, Zainal Arif
title Monitoring surface molecular order in discotic liquid crystals
title_short Monitoring surface molecular order in discotic liquid crystals
title_full Monitoring surface molecular order in discotic liquid crystals
title_fullStr Monitoring surface molecular order in discotic liquid crystals
title_full_unstemmed Monitoring surface molecular order in discotic liquid crystals
title_sort monitoring surface molecular order in discotic liquid crystals
publishDate 2001
url http://www.sciencedirect.com/science/article/pii/S000926140100094X
http://eprints.utp.edu.my/7916/
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