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Laser Irradiation and Property Correlation in Double-Lasing Processes on Laser-Induced Graphene Electrodes
Tran Quoc Thang1, Joohoon Kim1,2
1Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul 02447, Republic of Korea.
Nanomaterials (Basel, Switzerland)
|March 12, 2025
Summary
Double laser irradiation enhances laser-induced graphene (LIG) electrodes without chemical treatment. This improved graphitization boosts electrochemical performance, benefiting applications like electrochemical sensors.
Area of Science:
- Materials Science
- Electrochemistry
- Nanotechnology
Background:
- Laser-induced graphene (LIG) fabrication via direct laser writing is cost-effective for electrochemical applications.
- Current methods typically use single-lasing irradiation.
- Further improvements in LIG properties are possible without chemical modification.
Purpose of the Study:
- To investigate the enhancement of LIG electrochemical performance using a double-lasing irradiation process.
- To correlate laser irradiation parameters with LIG electrode properties.
- To demonstrate improved electrochemical sensing capabilities.
Main Methods:
- Fabrication of LIG electrodes using single-lasing and double-lasing irradiation.
- Characterization of microstructures and electrochemical features (sheet resistance, specific areal capacitance, peak-to-peak separation, peak current).
- Evaluation of electrochemical sensing performance for H2O2 detection.
Main Results:
- Double-lasing LIG exhibited significantly improved electrochemical properties compared to single-lasing LIG.
- Lower sheet resistance (RS) and peak-to-peak separation (ΔEP) were observed in double-lasing LIG.
- Enhanced graphitization degree correlated with improved electrochemical performance.
Conclusions:
- Double-lasing irradiation is an effective, chemical-free method to enhance LIG electrochemical performance.
- The improved properties make double-lasing LIG suitable for advanced electrochemical sensors.
- Demonstrated superior H2O2 sensing capabilities using double-lasing LIG electrodes.
Keywords:
double-lasing irradiationelectrochemical sensingenhanced electrochemical propertyirradiation and property correlationlaser-induced grapheneMore Related Videos
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