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Optical properties of Pd-Ag and Pt-Ag nanoboxes synthesized via galvanic replacement reactions

Publication ,  Journal Article
Chen, J; Wiley, B; McLellan, J; Xiong, Y; Li, ZY; Xia, Y
Published in: Nano Letters
October 1, 2005

Silver nanocubes dispersed in water were transformed into Pd-Ag or Pt-Ag nanoboxes by adding either Na 2PdCl 4 or Na 2PtCl 4. By controlling the amount of noble metal salt added, and therefore the molar ratio of Na 2PdCl 4 or Na 2PtCl 4 to Ag, we could tune the surface plasmon resonance peak of the nanostructures across the entire visible spectrum, from 440 to 730 nm. Replacement of Ag with Pd resulted in the formation of a nanobox composed of a Pd-Ag alloy single crystal, but the nanobox formed after replacement of Ag with Pt was instead composed of distinct Pt nanoparticles. DDA calculations suggest that both nanoboxes absorb light strongly, with Q abs/Q sca ≈ 5. After galvanic replacement, Pd-Ag and Pt-Ag nanostructures remain SERS active, suggesting their use as a SERS probe for studying the dependence of interfacial chemistry on composition. © 2005 American Chemical Society.

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Published In

Nano Letters

DOI

ISSN

1530-6984

Publication Date

October 1, 2005

Volume

5

Issue

10

Start / End Page

2058 / 2062

Related Subject Headings

  • Nanoscience & Nanotechnology
 

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Chen, J., Wiley, B., McLellan, J., Xiong, Y., Li, Z. Y., & Xia, Y. (2005). Optical properties of Pd-Ag and Pt-Ag nanoboxes synthesized via galvanic replacement reactions. Nano Letters, 5(10), 2058–2062. https://doi.org/10.1021/nl051652u
Chen, J., B. Wiley, J. McLellan, Y. Xiong, Z. Y. Li, and Y. Xia. “Optical properties of Pd-Ag and Pt-Ag nanoboxes synthesized via galvanic replacement reactions.” Nano Letters 5, no. 10 (October 1, 2005): 2058–62. https://doi.org/10.1021/nl051652u.
Chen J, Wiley B, McLellan J, Xiong Y, Li ZY, Xia Y. Optical properties of Pd-Ag and Pt-Ag nanoboxes synthesized via galvanic replacement reactions. Nano Letters. 2005 Oct 1;5(10):2058–62.
Chen, J., et al. “Optical properties of Pd-Ag and Pt-Ag nanoboxes synthesized via galvanic replacement reactions.” Nano Letters, vol. 5, no. 10, Oct. 2005, pp. 2058–62. Scopus, doi:10.1021/nl051652u.
Chen J, Wiley B, McLellan J, Xiong Y, Li ZY, Xia Y. Optical properties of Pd-Ag and Pt-Ag nanoboxes synthesized via galvanic replacement reactions. Nano Letters. 2005 Oct 1;5(10):2058–2062.
Journal cover image

Published In

Nano Letters

DOI

ISSN

1530-6984

Publication Date

October 1, 2005

Volume

5

Issue

10

Start / End Page

2058 / 2062

Related Subject Headings

  • Nanoscience & Nanotechnology