Evaluation by HAXPES of the Chemical State of the Components of a Close-packed Array of Bi-metallic (Au-Ag) Nanoparticles on ITO

Francesca Pincella; Yoshiyuki Yamashita; Rosantha Kumara; Anli Yang; Takao Ochiai; Satoshi Ishimaru; Kazushi Miki; Osami Sakata

doi:10.18957/rr.5.1.38

Section A

Evaluation by HAXPES of the Chemical State of the Components of a Close-packed Array of Bi-metallic (Au-Ag) Nanoparticles on ITO

Francesca Pincella, Yoshiyuki Yamashita, Rosantha Kumara, Anli Yang, Takao Ochiai, Satoshi Ishimaru, Kazushi Miki, Osami Sakata

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Keywords: metallic nanoparticles, core shell nanoparticle, plasmonics, photoemission spectroscopy

JOURNAL OPEN ACCESS

2017 Volume 5 Issue 1 Pages 38-44

DOI https://doi.org/10.18957/rr.5.1.38

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Abstract

Hard X-ray Photoemission Spectroscopy was employed to investigate the elemental composition and chemical state of core-shell bimetallic nanoparticles deposited on a solid substrate. A shift in Au 4f_7/2and Ag 3d_5/2binding energies together with the change in surface elemental composition of the nanoparticles suggests that a low-temperature alloying occurs for bimetallic nanoparticles.

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