Facet-dependent surface plasmon resonance properties of Au-Cu2 o core-shell nanocubes, octahedra, and rhombic dodecahedra.

Facet-dependent surface plasmon resonance properties of Au-Cu2 o core-shell nanocubes, octahedra, and rhombic dodecahedra.

Small (Weinheim an der Bergstrasse, Germany) (2014-08-15)

Shih-Chen Hsu, Shu-Ya Liu, Hsiang-Ju Wang, Michael H Huang

ABSTRACT

Au-Cu2 O core-shell nanocubes, octahedra, and rhombic dodecahedra display facet-dependent optical properties. Furthermore, different-sized Au-Cu2 O octahedra with 58, 65, 68, and 73 nm octahedral gold cores clearly show a transition from the shell thickness-independent gold surface plasmon resonance band for octahedra with smaller gold cores to progressive red-shifts of the band with increasing shell thickness in octahedra with larger gold cores.

MATERIALS

Product Number

Brand

Product Description

75746

Sigma-Aldrich

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43617

Supelco

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