Meng An
State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology (HUST), Wuhan 430074, P. R. China; Nano Interface Center for Energy (NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, P. R. China; College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, 6 Xuefuzhong Road, Weiyangdaxueyuan District of Xi'an, 710021, China
Qichen Song
State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology (HUST), Wuhan 430074, P. R. China; Nano Interface Center for Energy (NICE), School of Energy and Power Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, P. R. China
Xiandong Chen
Key Laboratory of Coal Combustion, Huazhong University of Science and Technology (HUST), Wuhan 430074, P. R. China; Nano Interface Center for Energy(NICE), School of Energy and Power Engineering, Huazhong University
of Science and Technology (HUST), Wuhan 430074, P. R. China
Zhan Peng
Key Laboratory of Coal Combustion, Huazhong University of Science and Technology (HUST), Wuhan 430074, P. R. China; Nano Interface Center for Energy(NICE), School of Energy and Power Engineering, Huazhong University
of Science and Technology (HUST), Wuhan 430074, P. R. China
Jianfeng Zang
School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), Wuhan 430074, P. R. China; Innovation Institute, School of Energy and Power Engineering, Huazhong University of Science and
Technology (HUST), Wuhan 430074, P. R. China
Nuo Yang
Key Laboratory of Coal Combustion, Huazhong University of Science and Technology (HUST), Wuhan 430074, P. R. China; Nano Interface Center for Energy(NICE), School of Energy and Power Engineering, Huazhong University
of Science and Technology (HUST), Wuhan 430074, P. R. China; School of Material and Energy, Guangdong University of Technology, Guangzhou, 510006, China
Phononic (thermal) devices such as thermal diode, thermal transistors, thermal logic gates, and thermal memories have been studied intensively. However, tunable thermal resistors have not been demonstrated yet. Here, we propose an instantaneously adjustable thermal resistor based on folded graphene. Through theoretical analysis and molecular dynamics simulations, we study the phonon-folding scattering effect and the dependence of thermal resistivity on the length between two folds and the overall length. Further, we discuss the possibility to realize the instantaneously adjustable thermal resistor in experiment. Our studies bring new insights in designing thermal resistor and understanding thermal modulation of 2D materials by adjusting its basic structure parameters.