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Kwon, Oh Hoon
Ultrafast Laser Spectroscopy and Nano-microscopy (ULSaN Lab)
Research Interests
  • Femtochemistry/biology, 4D electron microscopy, structural dynamics, materials phenomena

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

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Title
Mesoscopic linear alignment and thermal-relaxation dynamics of aggregated gold nanorods
Author
Kwon, Oh HoonLee, SJang, DJ
Issue Date
2005-07
Publisher
SPRINGER
Citation
EUROPEAN PHYSICAL JOURNAL D, v.34, no.1-3, pp.243 - 246
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.
URI
https://scholarworks.unist.ac.kr/handle/201301/8780
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=23744492985
DOI
10.1140/epjd/e2005-00152-3
ISSN
1434-6060
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CHM_Journal Papers
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