• 文献标题:   Twisted Bilayer Graphene Induced by Intercalation
  • 文献类型:   Article, Early Access
  • 作  者:   LI BX, WEI JT, JIN CQ, SI KP, MENG LJ, WANG XG, JIA YY, HE QQ, ZHANG P, WANG JL, GONG YJ
  • 作者关键词:   twisted bilayer graphene, chemical vapor deposition, interlayer interaction, moire pattern, graphene field effect transistor
  • 出版物名称:   NANO LETTERS
  • ISSN:   1530-6984 EI 1530-6992
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1021/acs.nanolett.3c00560 EA JUN 2023
  • 出版年:   2023

▎ 摘  要

Twisted bilayer graphene (tBLG) has gained significant attention due to its unique physical and electronic properties. However, efficient fabrication of high-quality tBLG with diverse twist angles is crucial to expedite research on angledependent physics and potential applications. In this study, an intercalation strategy utilizing organic molecules, such as 1,2dichloroethane, is developed to weaken the interlayer interaction and induce slide or rotation of the topmost graphene layer for tBLG fabrication. The proportion of tBLGs in the resulting 1,2dichloroethane-treated BLG (dtBLG) reaches up to 84.4% for twist angles ranging from 0 degrees to 30 degrees, surpassing previously reported methods using chemical vapor deposition (CVD). Moreover, the twist angle distribution is not uniform and tends to concentrate in the ranges of 0-10 degrees and 20-30 degrees. This facile and rapid intercalation-based methodology provides a practical solution for studying angle-dependent physics and advancing the utilization of twisted two-dimensional materials. [GRAPHICS]