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中国物理学会期刊

纳米尺度硼烯与石墨烯的相互作用

CSTR: 32037.14.aps.68.20190692

Interaction between borophene and graphene on a nanoscale

CSTR: 32037.14.aps.68.20190692
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  • 硼烯作为一种性能优异的二维材料, 其界面动力学行为值得探讨. 本文采用解析法研究了石墨烯与六方氮化硼(h-BN)以及一种硼烯之间的相互作用. 结果表明, 石墨烯在六方氮化硼上滑动时, C原子和B原子之间的相互作用弱于C原子和N原子之间的相互作用. 石墨烯与硼烯界面间的势能起伏明显小于石墨烯和六方氮化硼之间的势能起伏, 表明其界面摩擦力可能更小. 此外, 石墨烯从硼烯上滑出时拉出力较小, 其边界效应更弱, 因此硼烯有望成为一种摩擦性能优异的二维材料.

     

    The interface dynamic behavior of borophene is one of the issues that need investigating for its applications. In this paper, the interaction between graphene and borophene, h-BN is investigated. The results show that the interactions between C atoms and B atoms are weaker than those between C atoms and N atoms when graphene slides on h-BN substrate. The corrugation of interface potential between graphene and borophene is smaller than between graphene and h-BN, which implies smaller friction. Moreover, the pull-out force in the simulation system including graphene and borophene is smaller than the interaction between graphene and h-BN, which indicates a weaker boundary effect. Therefore, borophene promises to exhibit an excellent tribological behavior in application.

     

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