Related Experiment Video
Updated: Feb 3, 2026

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
Published on: September 22, 2015
Laser-Induced Reduction of Graphene Oxide by Intensity-Modulated Line Beam for Supercapacitor Applications
Tung Xuan Tran1, Hayelin Choi1, Cuong Huu Che1
1Laser Thermal Nanoengineering Laboratory, School of Mechanical Engineering , Chung-Ang University , Seoul 06974 , Republic of Korea.
Abstract:
Supercapacitors are irreplaceable energy-storage devices for high power output and rapid charge/discharge of electrical energy. In this study, the laser-based fabrication of reduced graphene oxide (rGO) electrodes for supercapacitors is demonstrated with several new features of laser irradiation. A conventional CO2 laser irradiation system is equipped with (1) a nitrogen blower to avoid combustion of the GO paper, (2) a cylindrical lens for producing a wide line beam, and (3) an optical chopper system for generating an intensity-modulated laser beam. Scanning of the intensity-modulated line beam transforms an extended area of GO into chemically reduced and physically porous graphene. The effects of the laser beam modifications and scanning parameters on the electrochemical performance of the rGO electrode are investigated. The rGO electrode exhibits a high specific capacitance (up to ∼130 F/g) at a current density of 1 A/g. This work can serve as a reference for the process optimization of laser-induced GO reduction.
More Related Videos
Related Concept Videos
Oxidation-Reduction Reactions
Oxidation and Reduction of Organic Molecules
The removal of an electron from a molecule, results in a...
Reactions at the Benzylic Position: Oxidation and Reduction
Oxidation Numbers
Beams
Based on geometry, beams can be straight, tapered, or curved. Straight beams are the most common type and have a constant cross-section throughout their length. Tapered beams, on the other hand, have a varying cross-section along...
Induced Electric Fields: Applications

