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Journal Article Giant Enhancement of the Raman Response Due to One-Dimensional ZnO Nanostructures
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Authors
Hae-Young Shin, Ee-Le Shim, Young-Jin Choi, Jong-Hyurk Park, Seokhyun Yoon
Issue Date
2014-12
Citation
Nanoscale, v.6, no.24, pp.14622-14626
ISSN
2040-3364
Publisher
Royal Society of Chemistry (RSC)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1039/c4nr04527k
Abstract
We observed giant enhancement of the Raman intensity from 4-Mpy molecules adsorbed on semiconducting one-dimensional ZnO nanostructures, nanowires and nanocones, without involving any noble metals. Interestingly, the enhancement is strongly dependent on the geometry of ZnO nanostructures and can mainly be explained by the cavity-like structural resonance of the electric field. Our results can be applied to systematically create hot spots for Raman signal enhancement using one-dimensional semiconducting nanomaterials. This journal is
KSP Keywords
4-Mpy, Electric Field, Hot-spot, Noble metal, Raman intensity, Raman response, Structural resonance, Zno nanostructures, one-dimensional, semiconducting nanomaterials, signal enhancement