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Proceedings Paper

Effects of functionalized metal and semiconductor nanoparticles in nematic liquid crystal phases
Author(s): Hao Qi; Brandy Kinkead; Torsten Hegmann
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Paper Abstract

To capitalize on the unique size and shape-dependent optical and electronic properties of nanoscale particles for liquid crystal (LC) applications, detailed structure and size-property relationship studies are critical. To enhance our understanding of the thermal, optical and electro-optic effects of nanoparticles in nematic LCs we produced numerous different nematic LC mixtures containing small quantities of dispersed metal nanoparticles (i.e. gold and silver nanoclusters) or semiconductor quantum dots (i.e. CdTe nanocrystals) and studied their optical (texture, alignment, defect formation, luminescence) and electro-optic properties. Depending on several experimental parameters such as nanoparticle functionalization and concentration, as well as thermal history in combination with an applied electric field, these nanoparticle/LC mixtures with the nanoparticles differing in surface functionality, size, and core material gave rise to unique alignment effects and electro-optic responses in the two investigated nematic LC (N-LC) hosts.

Paper Details

Date Published: 29 January 2008
PDF: 11 pages
Proc. SPIE 6911, Emerging Liquid Crystal Technologies III, 691106 (29 January 2008); doi: 10.1117/12.759473
Show Author Affiliations
Hao Qi, Univ. of Manitoba (Canada)
Brandy Kinkead, Univ. of Manitoba (Canada)
Torsten Hegmann, Univ. of Manitoba (Canada)

Published in SPIE Proceedings Vol. 6911:
Emerging Liquid Crystal Technologies III
Liang-Chy Chien, Editor(s)

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