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Updated: Mar 18, 2026
Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding
Published on: September 23, 2018
Adjustable thermal resistor by reversibly folding a graphene sheet
Qichen Song1, Meng An1, Xiandong Chen1
1State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. nuo@hust.edu.cn and Nano Interface Center for Energy (NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, People's Republic of China.
Researchers developed an instantaneously adjustable thermal resistor using folded graphene. This tunable thermal resistor offers new possibilities for thermal management in electronic devices.
Area of Science:
- Condensed matter physics
- Materials science
- Nanotechnology
Background:
- Phononic devices like thermal diodes and transistors are well-researched.
- Tunable thermal resistors, crucial for thermal management, remain undemonstrated.
Purpose of the Study:
- To propose and investigate an instantaneously adjustable thermal resistor.
- To explore the mechanism of tunable thermal resistance in folded graphene structures.
Main Methods:
- Theoretical analysis of phonon-folding scattering.
- Molecular dynamics simulations to study thermal resistivity.
- Investigating the impact of structural parameters on thermal properties.
Main Results:
- Demonstrated the concept of an instantaneously adjustable thermal resistor.
- Identified the phonon-folding scattering effect as the key mechanism.
- Showcased the dependence of thermal resistivity on fold geometry and overall length.
Conclusions:
- Folded graphene offers a viable platform for creating tunable thermal resistors.
- Structural parameter tuning provides a method for controlling thermal transport.
- This work opens new avenues for designing advanced thermal management devices.
