Abstract

Aqueous solutions containing a high yield of suspended gold nanorods have been successfully synthesized via an electrochemical method. The control of preparing gold nanorods with different aspect ratios can be attained. Their absorption spectral features show a dominant surface plasma band corresponding to the longitudinal resonance, SPl, and its λmax shifts markedly to the red as the aspect ratio is increased. Meanwhile, the dependence of λmax for longitudinal resonance on the mean aspect ratio shows a deviation from the classical electrostatic model prediction at mean aspect ratios around 4 ± 1, where it limits the validity of the classical electrostatic approximation.

Keywords

NanorodMaterials scienceAspect ratio (aeronautics)Yield (engineering)Resonance (particle physics)ElectrochemistryAqueous solutionAnalytical Chemistry (journal)Standard deviationSurface plasmon resonanceNanotechnologyOptoelectronicsNanoparticleChemistryComposite materialAtomic physicsElectrodeMathematicsPhysical chemistryPhysicsChromatography

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Publication Info

Year
1997
Type
article
Volume
101
Issue
34
Pages
6661-6664
Citations
1637
Access
Closed

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, Ser‐Sing Chang, Chien‐Liang Lee et al. (1997). Gold Nanorods:  Electrochemical Synthesis and Optical Properties. The Journal of Physical Chemistry B , 101 (34) , 6661-6664. https://doi.org/10.1021/jp971656q

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DOI
10.1021/jp971656q