Transparent SiO 2-Ag core-satellite nanoparticle assembled layer for plasmonic-based chemical sensors

Tsung Han Chen, Ren Der Jean, Kuo Chuang Chiu, Chun-Hua Chen*, Dean-Mo LIu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


We discovered a promising sensing capability of SiO 2@Ag core-satellite nanoparticles with respect to organic melamine when they were consolidated into a solid-type thin-film entity. A series of theoretical models were proposed which provided calculation outcomes superior to those of existing models for the localized surface plasmon resonance spectra of the solid-state assemblies. We envisioned not only that such a SiO 2@Ag film is a potential candidate for a transparent solid-state optical nanosensor for the detection of organic molecules but also that the resulting plasmonic resonance model facilitates a better understanding of such a solid-state nanosensor used for a number of sensory applications.

Original languageEnglish
Article number223101
JournalApplied Physics Letters
Issue number22
StatePublished - 28 May 2012

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