AVS 62nd International Symposium & Exhibition
    Surface Science Wednesday Sessions
       Session SS+AS-WeA

Paper SS+AS-WeA8
STM Characterization of Quasi-one Dimensional C60 Nanostructures on Rippled Graphene

Wednesday, October 21, 2015, 4:40 pm, Room 112

Session: Surface Dynamics, Non-Adiabaticity, and Single Molecule Phenomena
Presenter: Chenggang Tao, Virginia Tech
Authors: C. Chen, Virginia Tech
H. Zheng, Virginia Tech
A. Mills, Virginia Tech
C. Tao, Virginia Tech
Correspondent: Click to Email
Highly ordered one-dimensional (1D) molecular configurations are excellent model systems and prototypes of 1D quantum confinement of electronic states, and thus have potential importance in electronic nanodevices, spintronics and solid-state quantum computation. Due to the spherical geometry of C60 molecules, it has been challenging to experimentally realize quasi-1D C60 nanostructures, a highly anisotropic configuration. We will present our recent scanning tunneling microscopy (STM) characterization of novel quasi-1D C60 nanostructures on rippled graphene. Through careful control of the subtle balance between the linear periodic potential of rippled graphene and the C60 surface mobility, C60 molecules can be arranged into a 1D C60 chain structure with widths of two to three molecules. At a higher annealing temperature, the chain structure transitions to a more compact hexagonal close packed quasi-1D stripe structure. We will also discuss our scanning tunneling spectroscopy (STS) measurements on this hybrid system.