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Molecular bilayer graphene.

ABSTRACT: Bilayer graphene consists of two stacked graphene layers bound together by van der Waals interaction. As the molecular analog of bilayer graphene, molecular bilayer graphene (MBLG) can offer useful insights into the structural and functional properties of bilayer graphene. However, synthesis of MBLG, which requires discrete assembly of two graphene fragments, has proved to be challenging. Here, we show the synthesis and characterization of two structurally well-defined MBLGs, both consisting of two ?-? stacked nanographene sheets. We find they have excellent stability against variation of concentration, temperature and solvents. The MBLGs show sharp absorption and emission peaks, and further time-resolved spectroscopic studies reveal drastically different lifetimes for the bright and dark Davydov states in these MBLGs.

SUBMITTER: Zhao XJ

PROVIDER: S-EPMC6624274 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Molecular bilayer graphene.

Zhao Xin-Jing XJ Hou Hao H Fan Xue-Ting XT Wang Yu Y Liu Yu-Min YM Tang Chun C Liu Shun-He SH Ding Peng-Peng PP Cheng Jun J Lin Dong-Hai DH Wang Cheng C Yang Ye Y Tan Yuan-Zhi YZ

Nature communications 20190711 1

Bilayer graphene consists of two stacked graphene layers bound together by van der Waals interaction. As the molecular analog of bilayer graphene, molecular bilayer graphene (MBLG) can offer useful insights into the structural and functional properties of bilayer graphene. However, synthesis of MBLG, which requires discrete assembly of two graphene fragments, has proved to be challenging. Here, we show the synthesis and characterization of two structurally well-defined MBLGs, both consisting of ...[more]

PMID: 31296875

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