What question did this study set out to answer?

To investigate the assembly of polymer-encapsulated gold nanoparticles into regular one-dimensional arrays driven by the relaxation of interfacial shell curvature.

September 17, 2005Journal of the American Chemical Society

Plasmonic Nanoparticle Chains via a Morphological, Sphere-to-String Transition

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Authors

YKYoungjong KangHanyang University KEKris EricksonLawrence Berkeley National Laboratory TTT. Andrew TatonNorthwestern University

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Implication

Experimental study demonstrates directional surface plasmon coupling in self-assembled gold nanoparticle chains, highlighting their utility as nanoscale plasmon waveguides.

Key Points

To investigate the assembly of polymer-encapsulated gold nanoparticles into regular one-dimensional arrays driven by the relaxation of interfacial shell curvature.
Encapsulated gold nanoparticles in polystyrene-block-poly(acrylic acid) (Au@PS-b-PAA) micelles and triggered chain assembly by adding salt, acid, or cationic carbodiimide.
Characterized structural morphology and optical properties using transmission electron microscopy, scanning electron microscopy, dark-field optical microscopy, and visible absorption spectroscopy.
Evaluated directional surface plasmon coupling along isolated, straightened nanoparticle chains using far-field polarization microspectroscopy.
Modulating additive concentration directly controlled the length of the nanoparticle chains, whereas interparticle spacing was determined solely by micelle shell thickness.
Far-field polarization microspectroscopy confirmed directional surface plasmon coupling across straightened chains, satisfying a key operational requirement for plasmon waveguides.

Cite This Study

Kang et al. (2005) studied this question.

synapsesocial.com/papers/6a82490efc3df235bc87796a https://doi.org/10.1021/ja055090s

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Implication

Experimental study demonstrates directional surface plasmon coupling in self-assembled gold nanoparticle chains, highlighting their utility as nanoscale plasmon waveguides.

Plasmonic Nanoparticle Chains via a Morphological, Sphere-to-String Transition

Discussion

Member takes

Implication

Key Points

Cite This Study

Plasmonic Nanoparticle Chains via a Morphological, Sphere-to-String Transition

Discussion

Member takes

Implication

Key Points

Cite This Study

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