Developing laser-induced graphene from colorless polyimide for enhanced performance in pressure sensors and triboelectric nanogenerators

Sung-Yeob Jeong; Yusuke Ito; Jae-Yeop Chung; YongWan Kwon; Naohiko Sugita

doi:10.1117/12.2691860

12 March 2024 Developing laser-induced graphene from colorless polyimide for enhanced performance in pressure sensors and triboelectric nanogenerators

Sung-Yeob Jeong, Yusuke Ito, Jae-Yeop Chung, YongWan Kwon, Naohiko Sugita

Author Affiliations +

Proceedings Volume 12872, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXIX; 1287204 (2024) https://doi.org/10.1117/12.2691860
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

This research advances the application of Laser-Induced Graphene (LIG) in pressure sensing and energy harvesting, focusing on LIG derived from fluorine-integrated colorless polyimide (CPI) films. The graphitization of CPI films using laser techniques, validated by ReaxFF simulations, creates a porous LIG structure ideal for high-sensitivity pressure sensors. The CPI-LIG pressure sensor demonstrates exceptional sensitivity (60.340 kPa^-1 at 1.0–1.5 kPa), quick response (27 ms), and fast recovery (36 ms), with proven accuracy in tracking human movements. Additionally, the CPI-LIG enhanced triboelectric nanogenerator (TENG) significantly boosts power output to 65.2 mW/m², a 650% increase over traditional LIG, under a 40 MΩ load. This study thus reveals novel applications of CPI-derived LIG in sensitive pressure sensors and efficient energy harvesters.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Sung-Yeob Jeong, Yusuke Ito, Jae-Yeop Chung, YongWan Kwon, and Naohiko Sugita "Developing laser-induced graphene from colorless polyimide for enhanced performance in pressure sensors and triboelectric nanogenerators", Proc. SPIE 12872, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXIX, 1287204 (12 March 2024); https://doi.org/10.1117/12.2691860

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