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Relationship between Length and Surface-Enhanced Raman Spectroscopy Signal Strength in Metal Nanoparticle Chains : Ideal Models versus Nanofabrication
Joint Authors
Zhang, Shunping
Xu, Hongxing
Lopez, Rene
Hight Walker, Angela R.
Alexander, Kristen D.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-04-11
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Engineering Sciences and Information Technology
Chemistry
Abstract EN
We have employed capillary force deposition on ion beam patterned substrates to fabricate chains of 60 nm gold nanospheres ranging in length from 1 to 9 nanoparticles.
Measurements of the surface-averaged SERS enhancement factor strength for these chains were then compared to the numerical predictions.
The SERS enhancement conformed to theoretical predictions in the case of only a few chains, with the vast majority of chains tested not matching such behavior.
Although all of the nanoparticle chains appear identical under electron microscope observation, the extreme sensitivity of the SERS enhancement to nanoscale morphology renders current nanofabrication methods insufficient for consistent production of coupled nanoparticle chains.
Notwithstanding this fact, the aggregate data also confirmed that nanoparticle dimers offer a large improvement over the monomer enhancement while conclusively showing that, within the limitations imposed by current state-of-the-art nanofabrication techniques, chains comprising more than two nanoparticles provide only a marginal signal boost over the already considerable dimer enhancement.
American Psychological Association (APA)
Alexander, Kristen D.& Zhang, Shunping& Hight Walker, Angela R.& Xu, Hongxing& Lopez, Rene. 2012. Relationship between Length and Surface-Enhanced Raman Spectroscopy Signal Strength in Metal Nanoparticle Chains : Ideal Models versus Nanofabrication. Journal of Nanotechnology،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-502365
Modern Language Association (MLA)
Alexander, Kristen D.…[et al.]. Relationship between Length and Surface-Enhanced Raman Spectroscopy Signal Strength in Metal Nanoparticle Chains : Ideal Models versus Nanofabrication. Journal of Nanotechnology No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-502365
American Medical Association (AMA)
Alexander, Kristen D.& Zhang, Shunping& Hight Walker, Angela R.& Xu, Hongxing& Lopez, Rene. Relationship between Length and Surface-Enhanced Raman Spectroscopy Signal Strength in Metal Nanoparticle Chains : Ideal Models versus Nanofabrication. Journal of Nanotechnology. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-502365
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-502365