Ultrafast laser structuring of graphene-based multi-zone heaters for the detection of antioxidant capacity

Zhao Chi Chen, Shih Feng Tseng, Tien-Li Chang, Wen Tse Hsiao, Yung Sheng Lin

Research output: Contribution to journalArticle

Abstract

This study presents a non-contact processing method of heating devices using maskless ultrafast laser direct structuring of graphene (G) films coated on the alumina ceramic (Al2O3) substrates for antioxidant capacity (ATC). The effect of ATC temperatures on the electrode structures of the electrical resistance and electromechanical properties of G-based multi-zone (GM) device was investigated. The fabricated GM device with four electrode structures could be regarded as an on-site heater in assisting preheating treatment. The required laser processing parameters of energy fluence, pulse repetition rate, and scanning speed were 7.02 J/cm2, 300 kHz, and 500 mm/s, respectively. For the GM heater, a steady-state temperature of 100 °C could be reached within 10 s under a lower applied voltage of 14 V. The experimental results demonstrated that the electrothermal performance of GM devices was used to control the ATC preheating process. The absorbance values of ATC ranged from 0.5 ± 0.01 to 1.07 ± 0.04 measured by a spectrophotometer at a wavelength of 700 nm. Moreover, the absorbance value increased with increasing concentration of standard solution that the high absorbance represented the ATC solution with high reducing power. Successful operation of GM heater with a simple and promising technique should find application in laser-ablated G electrodes for an advanced inspection instrument of ATC.

Original languageEnglish
Pages (from-to)3115-3124
Number of pages10
JournalInternational Journal of Advanced Manufacturing Technology
Volume103
Issue number5-8
DOIs
Publication statusPublished - 2019 Aug 19

Fingerprint

Ultrafast lasers
Antioxidants
Graphene
Preheating
Electrodes
Pulse repetition rate
Acoustic impedance
Lasers
Spectrophotometers
Processing
Alumina
Inspection
Scanning
Heating
Wavelength
Temperature
Electric potential
Substrates

Keywords

  • Alumina ceramic (AlO) substrates
  • Antioxidant capacity
  • Electrothermal performance
  • G-based multi-zone (GM) device
  • Ultrafast laser direct structuring

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Mechanical Engineering
  • Computer Science Applications
  • Industrial and Manufacturing Engineering

Cite this

Ultrafast laser structuring of graphene-based multi-zone heaters for the detection of antioxidant capacity. / Chen, Zhao Chi; Tseng, Shih Feng; Chang, Tien-Li; Hsiao, Wen Tse; Lin, Yung Sheng.

In: International Journal of Advanced Manufacturing Technology, Vol. 103, No. 5-8, 19.08.2019, p. 3115-3124.

Research output: Contribution to journalArticle

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