| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5395606 | Journal of Electron Spectroscopy and Related Phenomena | 2015 | 4 Pages |
Abstract
Microspot two-photon photoemission (micro-2PPE) spectroscopy has been applied to measure the lateral distribution of unoccupied levels on copper phthalocyanine (CuPc) film on HOPG. In addition to the LUMO-derived level and the image potential state (IPS) on the film, we identified the modified IPS which is stabilized by the hole localized in a molecule. We show that modified IPS is observed only on bilayer area, reflecting the localization of the hole in a molecule. The modified IPS is absent on monolayer area, because the hole strongly interacts with substrate.
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Authors
T. Yamada, R. Yamamoto, T. Munakata,