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Self-orienting liquid crystal doped with polymer-azo-dye complex

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
Pages (from-to)1463-1470
Number of pages8
JournalOptical Materials Express
Issue number8
Publication statusPublished - 1 Dec 2011
Publication typeA1 Journal article-refereed


We investigate into a new type of liquid crystal (LC) heterogeneous system that contains hydrogen-bonded polymer-azo-dye complexes at a low concentration. The suspension shows a unique selforienting property and a spontaneous anchoring transition from planar to homeotropic alignment on a rubbed polyimide surface. We suggest a simple polymer adsorption model to explain the universal homeotropic orienting property. The complex-doped LC suspension can be used as a new liquid crystalline material that does not require any additional alignment processing or treatment.