Oligothiophene nanorings as electron resonators for whispering gallery modes.

  title={Oligothiophene nanorings as electron resonators for whispering gallery modes.},
  author={Ga{\"e}l Reecht and Herv{\'e} Bulou and Fabrice Scheurer and Virginie Speisser and Bernard Carri{\`e}re and Fabrice Mathevet and Guillaume Schull},
  journal={Physical review letters},
  volume={110 5},
Structural and electronic properties of oligothiophene nanowires and rings synthesized on a Au(111) surface are investigated by scanning tunneling microscopy. The spectroscopic data of the linear and cyclic oligomers show remarkable differences which, to a first approximation, can be accounted by considering electronic state confinement to one-dimensional boxes having, respectively, fixed and periodic boundary conditions. A more detailed analysis shows that polythiophene must be treated as a… 

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