Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/90091
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lay, Chee Leng | en |
dc.contributor.author | Koh, Charlynn Sher Lin | en |
dc.contributor.author | Wang, Jing | en |
dc.contributor.author | Lee, Yih Hong | en |
dc.contributor.author | Jiang, Ruibin | en |
dc.contributor.author | Yang, Yijie | en |
dc.contributor.author | Yang, Zhe | en |
dc.contributor.author | Phang, In Yee | en |
dc.contributor.author | Ling, Xing Yi | en |
dc.date.accessioned | 2019-05-27T09:17:25Z | en |
dc.date.accessioned | 2019-12-06T17:40:27Z | - |
dc.date.available | 2019-05-27T09:17:25Z | en |
dc.date.available | 2019-12-06T17:40:27Z | - |
dc.date.issued | 2017 | en |
dc.identifier.citation | Lay, C. L., Koh, C. S. L., Wang, J., Lee, Y. H., Jiang, R., Yang, Y., . . . Ling, X. Y. (2018). Aluminum nanostructures with strong visible-range SERS activity for versatile micropatterning of molecular security labels. Nanoscale, 10(2), 575-581. doi:10.1039/C7NR07793A | en |
dc.identifier.issn | 2040-3364 | en |
dc.identifier.uri | https://hdl.handle.net/10356/90091 | - |
dc.description.abstract | The application of aluminum (Al)-based nanostructures for visible-range plasmonics, especially for surface-enhanced Raman scattering (SERS), currently suffers from inconsistent local electromagnetic field distributions and/or inhomogeneous distribution of probe molecules. Herein, we lithographically fabricate structurally uniform Al nanostructures which enable homogeneous adsorption of various probe molecules. Individual Al nanostructures exhibit strong local electromagnetic field enhancements, in turn leading to intense SERS activity. The average SERS enhancement factor (EF) for individual nanostructures exceeds 104 for non-resonant probe molecules in the visible spectrum. These Al nanostructures also retain more than 70% of their original SERS intensities after one-month storage, displaying superb stability under ambient conditions. We further achieve tunable polarization-dependent SERS responses using anisotropic Al nanostructures, facilitating the design of sophisticated SERS-based security labels. Our micron-sized security label comprises two-tier security features, including a machine-readable hybrid quick-response (QR) code overlaid with a set of ciphertexts. Our work demonstrates the versatility of Al-based structures in low-cost modern chemical nano-analytics and forgery protection. | en |
dc.description.sponsorship | ASTAR (Agency for Sci., Tech. and Research, S’pore) | en |
dc.description.sponsorship | MOE (Min. of Education, S’pore) | en |
dc.format.extent | 22 p. | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | Nanoscale | en |
dc.rights | © 2018 The Royal Society of Chemistry. All rights reserved. This paper was published in Nanoscale and is made available with permission of The Royal Society of Chemistry. | en |
dc.subject | Security Labels | en |
dc.subject | SERS Active Aluminum Structures | en |
dc.subject | DRNTU::Science::Chemistry | en |
dc.title | Aluminum nanostructures with strong visible-range SERS activity for versatile micropatterning of molecular security labels | en |
dc.type | Journal Article | en |
dc.contributor.school | School of Physical and Mathematical Sciences | en |
dc.identifier.doi | 10.1039/C7NR07793A | en |
dc.description.version | Accepted version | en |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
Appears in Collections: | SPMS Journal Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Aluminum Nanostructures with Strong Visible-range SERS Activity for Versatile Micropatterning of Molecular Security Labels.pdf | 2.55 MB | Adobe PDF | View/Open |
SCOPUSTM
Citations
10
47
Updated on Mar 22, 2024
Web of ScienceTM
Citations
10
42
Updated on Oct 27, 2023
Page view(s) 50
576
Updated on Mar 28, 2024
Download(s) 20
196
Updated on Mar 28, 2024
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.