• 文献标题:   Surface-Enhanced Raman Signal for Terbium Single-Molecule Magnets Grafted on Graphene
  • 文献类型:   Article
  • 作  者:   LOPES M, CANDINI A, URDAMPILLETA M, RESERBATPLANTEY A, BELLINI V, KLYATSKAYA S, MARTY L, RUBEN M, AFFRONTE M, WERNSDORFER W, BENDIAB N
  • 作者关键词:   graphene, raman spectroscopy, bis phthalocyaninato terbium iii, singlemolecule magnet, afm, pipi interaction
  • 出版物名称:   ACS NANO
  • ISSN:   1936-0851 EI 1936-086X
  • 通讯作者地址:   Univ Grenoble 1
  • 被引频次:   62
  • DOI:   10.1021/nn1018363
  • 出版年:   2010

▎ 摘  要

We report the preparation and characterization of monolayer graphene decorated with functionalized single-molecule magnets (SMMs). The grafting ligands provide a homogeneous and selective deposition on graphene. The grafting is characterized by combined Raman microspectroscopy, atomic force microscopy (AFM), and electron transport measurements. We observe a surface-enhanced Raman signal that allowed us to study the grafting down to the limit of a few isolated molecules. The weak interaction through charge transfer is in agreement with ab initio DFT calculations. Our results indicate that both molecules and graphene are essentially intact and the Interaction Is driven by van der Waals forces.