Abstract
Benzene bilayer islands were observed by STM to be structurally similar on both Cu(1 1 1) and Cu(1 1 0) surfaces. The local electronic structure of the bilayers was studied using tunneling spectroscopy of Stark-shifted image potential states. On both Cu substrates, the n = 1 bilayer state was locally shifted away from the Fermi level when compared to the n = 1 monolayer state. The Stark-shift due to the electric field of the STM tip was observed to be greater for the n = 1 bilayer state than the n = 1 monolayer state on Cu(1 1 1).
| Original language | English |
|---|---|
| Pages (from-to) | 303-307 |
| Number of pages | 5 |
| Journal | Chemical Physics Letters |
| Volume | 431 |
| Issue number | 4-6 |
| DOIs | |
| State | Published - Nov 24 2006 |
| Externally published | Yes |
Funding
This work was supported by the W.M. Keck Foundation through the W.M. Keck Center for Nanoscale Molecular Electronics and a grant from NEDO (Japan).