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Tunable surface plasma resonance frequency in Ag core/Au shell nanoparticles system prepared by laser ablation
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10.1063/1.2829588
/content/aip/journal/apl/92/2/10.1063/1.2829588
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/2/10.1063/1.2829588
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Figures

Image of FIG. 1.
FIG. 1.

Absorption spectra of colloidal nanoparticles. Curve I shows the Ag colloid formed after laser ablation of the Ag plate for . Curves II–VI, the laser ablation to the Au plates in product I for 30, 60, 90, 120, and , respectively.

Image of FIG. 2.
FIG. 2.

Ultrahigh-resolution TEM images of colloid III.

Image of FIG. 3.
FIG. 3.

(a) SEM images of the nanoparticles in the product III. (b) Electron energy spectrum for the area in (a).

Image of FIG. 4.
FIG. 4.

Absorption spectra of nanoparticle colloids of (a) the mixed Ag and Au colloid; (b) the Ag colloid the same as I in Fig. 1; (c) further laser irradiated for and (d) for .

Image of FIG. 5.
FIG. 5.

Absorption spectra of Ag core/Au shell nanoparticles calculated by computer simulation based on Mie theory. The diameter of Ag core is . The thicknesses of the Au shell are 1, 2, 6, 10, 25, and , respectively.

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/content/aip/journal/apl/92/2/10.1063/1.2829588
2008-01-18
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Tunable surface plasma resonance frequency in Ag core/Au shell nanoparticles system prepared by laser ablation
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/2/10.1063/1.2829588
10.1063/1.2829588
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