Inkjet-Printed Multiwavelength Thermoplasmonic Images for Anticounterfeiting Applications

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Inkjet printing of thermoplasmonic nanoparticles enables instantaneous, large-area heat pattern generation upon light illumination from distance. By printing multiple metal nanoparticles of different shapes overlaid, we can fabricate multiwavelength thermoplasmonic images, which generate different heat patterns from a single printed image depending on the wavelength choice of light. In this work, we propose a novel multiwavelength thermoplasmonic image printing process that can be used for anticounterfeit technology. With this technology, “printed thermoplasmonic labels” allow fully secured anticounterfeit inspection procedure. Input stimulus of near-infrared or infrared light illumination and output signal reading of thermal patterns can be both completely invisible. Wavelength selective photothermal effect also enables the encryption of the contained information, which adds more complexity and thus higher security.
Publisher
AMER CHEMICAL SOC
Issue Date
2018-02
Language
English
Article Type
Article
Citation

ACS APPLIED MATERIALS & INTERFACES, v.10, no.7, pp.6764 - 6771

ISSN
1944-8244
DOI
10.1021/acsami.7b19342
URI
http://hdl.handle.net/10203/240973
Appears in Collection
BiS-Journal Papers(저널논문)
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