Effects of photo-controlled nanophase segregation in a re-entrant nematic liquid crystal

Authors
Prasad, SK Nair, GG
Citation
Sk. Prasad et Gg. Nair, Effects of photo-controlled nanophase segregation in a re-entrant nematic liquid crystal, ADVAN MATER, 13(1), 2001, pp. 40
Citations number
13
Categorie Soggetti
Multidisciplinary,"Material Science & Engineering
Journal title
ADVANCED MATERIALS
ISSN journal
09359648 → ACNP
Volume
13
Issue
1
Year of publication
2001
Database
ISI
SICI code
0935-9648(20010105)13:1<40:EOPNSI>2.0.ZU;2-I
Abstract
Liquid crystals composed of photoactive groups, such as azobenzene, are pro mising materials for optical switching and image storage applications. On e xposure to light LC materials commonly undergo an order-to disorder transit ion. Here, an unusual disorder-to-order transition is presented (the Figure shows a photo-induced smectic texture surrounded by a nematic phase), and a photo-controlled nanophase segregation mechanism is invoked to explain it .