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e-Journal of Surface Science and Nanotechnology
Vol. 14 (2016) p. 185-188



Regular Papers

Composite paper containing single-walled carbon nanotubes (SWNTs) has been employed for artifact-metrics authentication using Raman mapping images for authentication keys. To make the most of SWNT properties for authentication, it is desirable to use the diversity of chiralities for authentication keys. In this study, we explored the application of photoluminescence (PL) imaging of SWNT-composite paper to artifact-metrics authentication. SWNTs were wrapped with carboxymethyl cellulose to activate PL and embedded in paper. PL mapping images of different chiralities were examined for authentication. The authentication accuracy was greatly improved by using three-chirality keys. An estimated error rate as small as 10-12 was achieved. [DOI:10.1380/ejssnt.2016.185]

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