TITLE

Bias dependent dielectric relaxation dynamics of electrically tuned large-scale aligned zinc oxide nanorods in nematic liquid crystal host

AUTHOR(S)
Nayek, P.; Ghosh, S.; Karan, S.; Majumder, T. Pal; Roy, S. K.
PUB. DATE
September 2008
SOURCE
Applied Physics Letters;9/15/2008, Vol. 93 Issue 11, p112905
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
It was observed that mixed ZnO nanorods and twisted nematic liquid crystals (LCs) show highly ordered molecular system. The observed molecular relaxation arose due to a reorientation of long molecular axis of the order of 400 kHz for pure ZLI-1636, while such relaxation was shifted to a lower frequency for mixture. By using the proposed equations, f=fDB-α exp[-EV/(B-BC)] and σ=σDB-sα exp[-sEV/(B-BC)], the obtained equivalent activation energy was increased remarkably by the introduction of ZnO nanorods in pure LC. A strong long-range interaction is established in 0.01% ZnO nanorods mixed LC system.
ACCESSION #
34555709

 

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