Fabrication of graphene-based temperature sensors by flat-top femtosecond laser scribing phenolic resin

Zheng Zhang; Weihua Zhu; Yuhang Gao; Mingle Guan; Sumei Wang

doi:10.1117/12.3040195

16 August 2024 Fabrication of graphene-based temperature sensors by flat-top femtosecond laser scribing phenolic resin

Zheng Zhang, Weihua Zhu, Yuhang Gao, Mingle Guan, Sumei Wang

Proceedings Volume 13231, 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024); 1323118 (2024) https://doi.org/10.1117/12.3040195
Event: 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024), 2024, Chongqing, China

Abstract

Temperature measurement plays a pivotal role in both everyday life and industrial production. The utilization of flexible temperature sensors has gained significant attention due to their exceptional flexibility, which allows for greater adaptability in various application environments. This paper introduces a straightforward and efficient approach to manufacturing a graphene-based flexible temperature sensor. Laser-induced graphene (LIG) was synthesized from phenolic resin (PR) irradiated by flat-top shaping femtosecond laser. The resulting LIG was thoroughly characterized using SEM, Raman spectroscopy, and XPS. The flexible temperature sensor was prepared based on LIG. The sensor has a sensitivity of 0.78% /°C and a linear response over a temperature range of 25-75°C. The application potential of PRbased LIG extends to human physiological health monitoring, wearable devices, and various other fields.

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

Citation Download Citation

Zheng Zhang, Weihua Zhu, Yuhang Gao, Mingle Guan, and Sumei Wang "Fabrication of graphene-based temperature sensors by flat-top femtosecond laser scribing phenolic resin", Proc. SPIE 13231, 4th International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2024), 1323118 (16 August 2024); https://doi.org/10.1117/12.3040195

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