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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
- 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