Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/143411
Title: Flexible three-dimensional anticounterfeiting plasmonic security labels : utilizing z-axis-dependent SERS readouts to encode multilayered molecular information
Authors: Liu, Yejing
Lee, Yih Hong
Lee, Mian Rong
Yang, Yijie
Ling, Xing Yi
Keywords: Science::Physics
Issue Date: 2017
Source: Liu, Y., Lee, Y. H., Lee, M. R., Yang, Y., & Ling, X. Y. (2017). Flexible three-dimensional anticounterfeiting plasmonic security labels : utilizing z-axis-dependent SERS readouts to encode multilayered molecular information. ACS Photonics, 4(10), 2529-2536. doi:10.1021/acsphotonics.7b00796
Journal: ACS Photonics
Abstract: Current surface-enhanced Raman scattering (SERS)-based anticounterfeiting strategies primarily encode molecular information in single two-dimensional (2D) planes and under-utilize the three-dimensionality (3D) of plasmonic hot spots. Here, we demonstrate a 3D SERS anticounterfeiting platform, extending "layered security" capabilities from 2D to 3D. We achieve this capability by combining 3D candlestick microstructures with 3D hyperspectral SERS imaging to fully resolve at least three layers of encoded information within the same 2D area along the z-axis, notably using only a single probe molecule. Specific predesigned covert images can only be fully recovered via SERS imaging at predetermined z values. Furthermore, our 3D SERS anticounterfeiting security labels can be fabricated on both rigid and flexible substrates, widening their potential usages to curved product surfaces and banknotes.
URI: https://hdl.handle.net/10356/143411
ISSN: 2330-4022
DOI: 10.1021/acsphotonics.7b00796
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Photonics, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsphotonics.7b00796
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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