Directed Self-Assembly of Quantum Dots in a Nematic Liquid Crystal

Details Directed Self-Assembly of Quantum Dots in a Nematic Liquid Crystal Directed Self-Assembly of Quantum Dots in a Nematic Liquid Crystal

2008-12-08

arxiv.org/abs/0812.1585v1

Physics

Condensed Matter

Soft Condensed Matter

14 pages

Scientific paper

Self organizing anisotropic nematic liquid crystals (LCs) induce self-assembly on quantum dots (QDs) to form one-dimensional chains along the nematic director. Spatial ordering of QDs, achieved in the nematic LC matrix, can be controlled in a preferred direction on application of electric fields, gaining better self-assembly. Once the field goes off, the LC+QD system relaxes back to the original state, revealing the intrinsic dynamics. Due to the dielectric anisotropy of the system, this dynamic response can be captured by studying dielectric relaxation. The studied dynamic response reveals insights on the field-induced self-assembly mechanism and the stability of the LC+QD system.

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