Carbon Nanotube Paper-Based Electroanalytical Devices

Carbon Nanotube Paper-Based Electroanalytical Devices

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Here, we report on TOPS carbon nanotube paper-based electroanalytical devices.A highly aligned-carbon nanotube (HA-CNT) array, grown using chemical vapor deposition (CVD), was processed to form bi-layered paper with an integrated cellulose-based Origami-chip as the electroanalytical device.We used an inverse-ordered fabrication method from a thick carbon nanotube (CNT) sheet to a thin CNT sheet.

A 200-layered HA-CNT sheet and a 100-layered HA-CNT sheet are explored as a working electrode.The device was fabricated using the following methods: (1) cellulose-based paper was patterned using a wax printer, (2) electrical connection was made using a silver ink-based circuit printer, and (3) three electrodes Quilting Books were stacked on a 2D Origami cell.Electrochemical behavior was evaluated using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV).

We believe that this platform could attract a great deal of interest for use in various chemical and biomedical applications.