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

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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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 PR-based LIG extends to human physiological health monitoring, wearable devices, and various other fields.

Original languageEnglish
Title of host publication4th International Conference on Laser, Optics, and Optoelectronic Technology, LOPET 2024
EditorsSuihu Dang, Manuel Filipe Costa
PublisherSPIE
ISBN (Electronic)9781510681903
DOIs
Publication statusPublished - 2024
Event4th International Conference on Laser, Optics, and Optoelectronic Technology, LOPET 2024 - Chongqing, China
Duration: 17 May 202419 May 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13231
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference4th International Conference on Laser, Optics, and Optoelectronic Technology, LOPET 2024
Country/TerritoryChina
CityChongqing
Period17/05/2419/05/24

Keywords

  • beam shaping
  • Femtosecond laser
  • laser-induced graphene
  • temperature sensor

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