One of the current challenges in nanoscience is tailoring phononic devices, such as thermal regulators and thermal computing. This has long been a rather elusive task because the thermal-switching ratio is not as high as electronic analogs. Mapping from a topological kirigami assembly, nitrogen-doped porous graphene metamaterials on the nanoscale are inversely designed with a thermal-switching ratio of 27.79, which is more than double the value of previous work. We trace this behavior to the chiral folding-unfolding deformation, resulting in a metal-insulator transition. This study provides a nanomaterial design paradigm to bridge the gap between kinematics and functional metamaterials that motivates the development of high-performance thermal regulators.
@article{arxiv.2302.05057,
title = {Kirigami-Inspired Thermal Regulator},
author = {Hongyi Ouyang and Yuanqing Gu and Zhibin Gao and Lei Hu and Zhen Zhang and Jie Ren and Baowen Li and Jun Sun and Yan Chen and Xiangdong Ding},
journal= {arXiv preprint arXiv:2302.05057},
year = {2023}
}