Carbon-nanotube ink and laser engraved lignin on fabrics for wearable electronics

Nida Khattak; Nirmita Roy; Kat-Kim Phan; Bianca Seufert; Arash Takshi

doi:10.1117/12.2677573

29 September 2023 Carbon-nanotube ink and laser engraved lignin on fabrics for wearable electronics

Nida Khattak, Nirmita Roy, Kat-Kim Phan, Bianca Seufert, Arash Takshi

Proceedings Volume 12670, 3D Printing for Lighting; 126700B (2023) https://doi.org/10.1117/12.2677573
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

With technological advances occurring worldwide, wearable electronics have garnered significant attention within diverse fields, from medical to industry. Carbon Nanotube (CNT) ink has had a big impact on these applications of e-textiles. Conductive patterns can be made by printing the CNT ink directly on fabrics. However, a new process and chemical have been tested, where alternatively, a conductive pattern can be applied by laser burning of a lignin-coated layer over a piece of fabric. In this work, we evaluated the quality of patterned laminated polyester ripstop fabric with the two methods of silk screen printing of the CNT ink and the laser burning of lignin. A major focus within these two methods is their resistance values. CNT ink has succeeded with a lower four-probe resistance of about 19.69 Ω/, making it preferable for wearable applications. However, patterning can become an issue when coating CNT ink. Laser burning has its pros and cons: while it can be much simpler to pattern, it has a much higher four-probe resistance of about 49.21 Ω/. In this study, the laser power and rastering are evaluated and compared to the resistance values of CNT ink coating. With this success, further testing on different fabrics and patterns can lead to more inexpensive yet efficient applications and devices.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Nida Khattak, Nirmita Roy, Kat-Kim Phan, Bianca Seufert, and Arash Takshi "Carbon-nanotube ink and laser engraved lignin on fabrics for wearable electronics", Proc. SPIE 12670, 3D Printing for Lighting, 126700B (29 September 2023); https://doi.org/10.1117/12.2677573

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