Electrical conductivity and electromagnetic interference shielding efficiency of carbon nanotube/cellulose composite paper

Artifact-Metrics Using Photoluminescence Imaging of Single-Walled Carbon Nanotube Composite Paper

“…The variety of keys was increased by using PL spectroscopy, because data on not only diameters but also chiralities could be employed. Note that the difference in diameter between (9,4), (8,6), and (12, 1) SWNTs was only 0.08 nm. We confirmed that the authentication accuracy was improved by using multiple keys.…”

“…The number of enrolment data was 40. Figure 4(a) shows a histogram of correlation-coefficients of (9,4), (12,1) and (9, 4)+(12, 1) SWNTs. The EERs for (9, 4) SWNTs and (12, 1) SWNTs were 2.0×10 −7 and 4.0×10 −8 , respectively.…”

“…We then integrated the data for (9,4) and (8, 6) SWNTs. Figure 4(b) shows a histogram of the correlation coefficients of (9,4), (8,6), and (9, 4)+(8, 6) SWNTs.…”

“…Figure 4(b) shows a histogram of the correlation coefficients of (9,4), (8,6), and (9, 4)+(8, 6) SWNTs. Even though the number of samples was 40, the EER es- timated on the basis of the data for the (8,6) SWNT was happened to be small, 1.0×10 −13 .…”

“…In the case of paper, several authentication methods have been developed using optical images of physical feature patterns [2,3], waveforms from magnetic fibers embedded in paper [1,6], or Raman spectra from single-walled carbon nanotube (SWNT) composite paper [7]. Here, SWNT-composite paper was made from a mixture of a pulp suspension and a dispersed SWNT suspension [8,9]. Because SWNTs are cylindrical nanomaterials with a variety of diameters and structures defined by chiral indices (n, m), i.e., chirality.…”