• 文献标题:   Molecular Stacking on Graphene
  • 文献类型:   Article
  • 作  者:   WEI T, LIU X, KOHRING M, ALFOGRA S, MORITZ M, HEMMETER D, PAAP U, PAPP C, STEINRUCK HP, BACHMANN J, WEBER HB, HAUKE F, HIRSCH A
  • 作者关键词:   2dfunctionalization, graphene patterning, heteroarchitecture, molecular assembly, molecular stacking
  • 出版物名称:   ANGEWANDTE CHEMIEINTERNATIONAL EDITION
  • ISSN:   1433-7851 EI 1521-3773
  • 通讯作者地址:  
  • 被引频次:   1
  • DOI:   10.1002/anie.202201169 EA JUL 2022
  • 出版年:   2022

▎ 摘  要

The sequential vertical polyfunctionalization of 2D addend-patterned graphene is still elusive. Here, we report a practical realization of this goal via a "molecular building blocks" approach, which is based on a combination of a lithography-assisted reductive functionalization approach and a post-functionalization step to sequentially and controllably link the molecular building blocks ethylpyridine, cis-dichlorobis(2,2 '-bipyridyl)ruthenium, and triphenylphosphine (4-methylbenzenethiol, respectively) on selected lattice regions of a graphene matrix. The assembled 2D hetero-architectures are unambiguously characterized by various spectroscopic and microscopic measurements, revealing the stepwise stacking of the molecular building blocks on the graphene surface. Our method overcomes the current limitation of a one-layer-only binding to the graphene surface and opens the door for a vertical growth in the z-direction.