A super flexible and custom-shaped graphene heater
Tian-Yu Zhang1, Hai-Ming Zhao, Dan-Yang Wang
1Institute of Microelectronics, Tsinghua University, Beijing 100084, China. RenTL@tsinghua.edu.cn yiyang@tsinghua.edu.cn.
Nanoscale
|July 21, 2017
Summary
Researchers developed a flexible graphene film heater using laser reduction of graphene oxide. This adaptable heater offers precise temperature control and superior durability for various applications.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Graphene oxide (GO) is a promising material for flexible electronics.
- Existing film heaters often lack durability and precise control.
- Laser reduction offers a novel method for GO modification.
Purpose of the Study:
- To fabricate a high-performance graphene film heater via laser reduction of GO.
- To investigate the electrothermal properties and flexibility of the fabricated heater.
- To demonstrate potential applications of the graphene heater.
Main Methods:
- Two-step fabrication process involving laser reduction of graphene oxide.
- Tuning electrothermal performance by adjusting laser energy density.
- Testing thermal stability and flexibility through repeated folding and power control.
Main Results:
- Achieved a steady-state temperature of 247.3 °C at 18 V within 20 s.
- Demonstrated precise temperature control and uniform distribution after 100 folding cycles.
- Exhibited superior flexibility compared to indium tin oxide (ITO) film heaters.
Conclusions:
- Laser-reduced graphene oxide films offer a highly flexible and durable heating solution.
- The fabrication method allows for custom shapes and easy production.
- Potential applications include portable warmers, custom heaters, and displays.
