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Updated: Jan 20, 2026
08:57
Scalable Syntheses of Graphene Oxide and Reduced Graphene Oxide using Cascade Design Oxidation and Highly Basic Reduction Reactions
Published on: July 3, 2025
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Inexpensive Graphene Oxide Heaters Lithographed by Laser
Francisco J Romero1,2, Almudena Rivadeneyra3,4, Inmaculada Ortiz-Gomez5
1Pervasive Electronics Advanced Research Laboratory, University of Granada, 18071 Granada, Spain. franromero@ugr.es.
Nanomaterials (Basel, Switzerland)
|August 24, 2019
Summary
We developed a low-cost method using laser-reduced graphene-oxide (LrGO) to create high-performance, large-scale flexible heaters. These LrGO heaters achieve high temperatures quickly and are suitable for integrated sensing systems.
Area of Science:
- Materials Science
- Nanotechnology
- Electrical Engineering
Background:
- Graphene oxide (GO) is a promising material for electronic applications.
- Developing cost-effective, large-scale fabrication methods for graphene-based devices is crucial.
Purpose of the Study:
- To present a simple, inexpensive method for fabricating high-performance graphene-based heaters.
- To investigate the performance characteristics of these heaters on various substrates.
Main Methods:
- Laser photothermal reduction of graphene oxide (GO) to produce laser-reduced graphene-oxide (LrGO).
- Fabrication of graphene-based heaters on large-scale substrates.
- Characterization of heater performance: steady-state temperature, power consumption, and time response.
Main Results:
- LrGO heaters achieved stable steady-state temperatures over 200 °C at 15 V.
- Heaters demonstrated a fast time constant of approximately 4 s.
- A heat transfer coefficient of ~200 °C cm²/W was recorded.
Conclusions:
- The laser photothermal reduction method is a competitive and promising approach for cost-effective, large-scale flexible heater fabrication.
- The developed LrGO heaters offer fast response times and high steady-state temperatures.
- This technology is compatible with other fabrication methods for integrated sensing systems.
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