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

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

doi:10.1002/smll.201401916

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

Small. 2015 Jan 14;11(2):195-201. doi: 10.1002/smll.201401916. Epub 2014 Aug 13.

Authors

Shih-Chen Hsu¹, Shu-Ya Liu, Hsiang-Ju Wang, Michael H Huang

Affiliation

¹ Department of Chemistry and Frontier Research Center on Fundamental and Applied Science of Matter, National Tsing Hua University, Hsinchu, 30013, Taiwan.

PMID: 25115825
DOI: 10.1002/smll.201401916

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.

Keywords: core-shell nanocrystals; cuprous oxide; facet-dependent properties; gold; surface plasmon resonance.

Publication types

Research Support, Non-U.S. Gov't