Inkjet-Printed Multiwalled Carbon Nanotube Dispersion as Wireless Passive Strain Sensor

Benchirouf, Abderrahmane; Kanoun, Olfa

doi:10.3390/s24051585

Cited by 1 publication

(1 citation statement)

References 42 publications

(60 reference statements)

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“…Solution-based manufacturing processes, including inkjet printing, screen printing, vacuum filtering, and drop casting, are essential for many types of functional thin-film devices because they enable the development of low-cost, scalable, and vacuum-free manufacturing processes [1][2][3][4][5][6][7][8][9][10]. Major functional thin-film devices that use solution-based manufacturing processes include photovoltaic cells, sensors, transistors, and thermoelectric devices.…”

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confidence: 99%

Stretchable and Flexible Painted Thermoelectric Generators on Japanese Paper Using Inks Dispersed with P- and N-Type Single-Walled Carbon Nanotubes

Nakajima,

Hoshino,

Yamamoto

et al. 2024

Sensors

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As power sources for Internet-of-Things sensors, thermoelectric generators must exhibit compactness, flexibility, and low manufacturing costs. Stretchable and flexible painted thermoelectric generators were fabricated on Japanese paper using inks with dispersed p- and n-type single-walled carbon nanotubes (SWCNTs). The p- and n-type SWCNT inks were dispersed using the anionic surfactant of sodium dodecylbenzene sulfonate and the cationic surfactant of dimethyldioctadecylammonium chloride, respectively. The bundle diameters of the p- and n-type SWCNT layers painted on Japanese paper differed significantly; however, the crystallinities of both types of layers were almost the same. The thermoelectric properties of both types of layers exhibited mostly the same values at 30 °C; however, the properties, particularly the electrical conductivity, of the n-type layer increased linearly, and of the p-type layer decreased as the temperature increased. The p- and n-type SWCNT inks were used to paint striped patterns on Japanese paper. By folding at the boundaries of the patterns, painted generators can shrink and expand, even on curved surfaces. The painted generator (length: 145 mm, height: 13 mm) exhibited an output voltage of 10.4 mV and a maximum power of 0.21 μW with a temperature difference of 64 K at 120 °C on the hot side.

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