Crystal structure and core alignment in colloidal crystals of gold-nanorod@polymer core-shell particles
Plasmonic nanostructures represent promising components for new optical and non-linear optical devices in many advanced applications. However for most of these devices the nanostructures need to be assembled into 2D and 3D superstructures with high order and defined lattice constants. We face this challenge by using gold nanorod/polymer core/shell colloids and their crystallization at high volume fractions. Knowledge of the crystal structure, inter-particle separation, domain size and potential alignment of the anisotropic cores is crucial for understanding the optical performance of these materials and to make them suitable for the realization of new, functional devices. Small angle neutron scattering is the only technique capable of measuring hard-core/soft-shell colloids at high volume fractions in large sample containers, which are required for controlled crystallization into highly ordered crystals with cm dimensions.
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KARG Matthias; CARL Nico Oliver; JABER Sarah; MULVANEY Paul; RAUH Astrid and SCHWEINS Ralf. (2015). Crystal structure and core alignment in colloidal crystals of gold-nanorod@polymer core-shell particles. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1413
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