Mesoscopic linear alignment and thermal-relaxation dynamics of aggregated gold nanorods

Self-organized Systems and Nanostructures

Abstract.

Aqueous gold nanorod colloids aggregated by Cl- are further assembled into linearly aligned structures of linear bundles during evaporation on TEM grids. Gold nanorods in bundles are also oriented in nearly head-to-tail shapes in the microscopic scale. Induced dipolar long-range interactions in the mesoscopic scale are suggested to drive gold nanorods to aggregate. Although surface-plasmon absorption at transverse resonances decreases, that at longitudinal resonances increases with aggregation. The photon-thermalized heat of the dispersed and the aggregated gold nanorods dissipates to immediately surrounding media on the time scales of 100 and 800 ps, respectively.

Keywords

Neural Network Evaporation Nonlinear Dynamics Quantum Computing Gold Nanorods 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2005

Authors and Affiliations

  1. 1.School of Chemistry, Seoul National UniversitySeoulKorea

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