UM  > 健康科學學院
An effective surface-enhanced Raman scattering template based on a Ag nanocluster-ZnO nanowire array
Deng S.1; Fan H.M.1; Zhang X.1; Loh K.P.1; Cheng C.-L.3; Sow C.H.1; Foo Y.L.2
2009-05-12
Source PublicationNanotechnology
ISSN09574484 13616528
Volume20Issue:17
Abstract

An effective surface-enhanced Raman scattering (SERS) template based on a 3D hybrid Ag nanocluster (NC)-decorated ZnO nanowire array was fabricated through a simple process of depositing Ag NCs on ZnO nanowire arrays. The effects of particle size and excitation energy on the Raman scattering in these hybrid systems have been investigated using rhodamine 6G as a standard analyte. The results indicate that the hybrid nanosystem with 150nm Ag NCs produces a larger SERS enhancement factor of 3.2 × 10, which is much higher than that of 10nm Ag NCs (6.0 × 10) under 532nm excitation energy. The hybrid nanowire arrays were further applied to obtain SERS spectra of the two-photon absorption (TPA) chromophore T7. Finite-difference time-domain simulations reveal the presence of an enhanced field associated with inter-wire plasmon coupling of the 150nm Ag NCs on adjacent ZnO nanowires; such a field was absent in the case of the 10nm Ag NC-coated ZnO nanowire. Such hybrid nanosystems could be used as SERS substrates more effectively than assembled Ag NC film due to the enhanced light-scattering local field and the inter-wire plasmon-enhanced electromagnetic field. © 2009 IOP Publishing Ltd.

DOI10.1088/0957-4484/20/17/175705
URLView the original
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000264950600020
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionFaculty of Health Sciences
Affiliation1.National University of Singapore
2.A-Star, Institute of Materials Research and Engineering
3.National Dong Hwa University
Recommended Citation
GB/T 7714
Deng S.,Fan H.M.,Zhang X.,et al. An effective surface-enhanced Raman scattering template based on a Ag nanocluster-ZnO nanowire array[J]. Nanotechnology,2009,20(17).
APA Deng S..,Fan H.M..,Zhang X..,Loh K.P..,Cheng C.-L..,...&Foo Y.L..(2009).An effective surface-enhanced Raman scattering template based on a Ag nanocluster-ZnO nanowire array.Nanotechnology,20(17).
MLA Deng S.,et al."An effective surface-enhanced Raman scattering template based on a Ag nanocluster-ZnO nanowire array".Nanotechnology 20.17(2009).
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Deng S.]'s Articles
[Fan H.M.]'s Articles
[Zhang X.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Deng S.]'s Articles
[Fan H.M.]'s Articles
[Zhang X.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Deng S.]'s Articles
[Fan H.M.]'s Articles
[Zhang X.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.