标题： 石墨烯层间显著弹道热输运：纳米孔和锂插层的影响 显示英文标题

标题： Significant ballistic thermal transport across graphene layers: effect of nanoholes and lithium intercalation

摘要： 多孔石墨烯和石墨因其独特的结构和热性能，在电化学能量存储和太阳能热应用中得到了越来越多的利用。 在这项研究中，我们对多孔石墨和多层石墨烯的晶格热传输和声子谱特性进行了全面分析。 我们的结果显示，相对于石墨烯基面呈斜向传播的声子模式是跨平面热传输的主要贡献者。 这些模式表现出主要的弹道性质，导致跨平面热导率随着层数几乎呈线性增加。 石墨烯中的纳米孔诱导了跨平面声子传输的宽带抑制，而锂离子插层则显示出增强其传输的潜力。 这些发现为控制基于石墨烯的关键结构的跨平面热传导机制提供了关键见解，为范德华材料的热管理和工程设计提供了宝贵的指导。 显示英文摘要

摘要： Porous graphene and graphite are increasingly utilized in electrochemical energy storage and solar-thermal applications due to their unique structural and thermal properties. In this study, we conduct a comprehensive analysis of the lattice thermal transport and spectral phonon characteristics of holey graphite and multilayer graphene. Our results reveal that phonon modes propagating obliquely with respect to the graphene basal planes are the primary contributors to cross-plane thermal transport. These modes exhibit a predominantly ballistic nature, resulting in an almost linear increase in cross-plane thermal conductivity with the number of layers. The presence of nanoholes in graphene induces a broadband suppression of cross-plane phonon transport, whereas lithium ion intercalation shows potential to enhance it. These findings provide critical insights into the mechanisms governing cross-plane heat conduction in key graphene-based structures, offering valuable guidance for thermal management and engineering of van der Waals materials.