Formation and regulation of unoccupied hybridized band with image potential states at perylene/graphite interface

Formation and regulation of unoccupied hybridized band with image potential states at perylene/graphite interface

Occupied and unoccupied electronic structures of submonolayer perylene (C20H12) on a graphite surface have been investigated using two-photon photoemission (2PPE) spectroscopy for two phases at room and low temperatures. Low energy electron diffraction measurements indicated that the molecules are d...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:The Journal of chemical physics 2019-12, Vol.151 (22), p.224703-224703
Hauptverfasser: Yamada, Takashi, Ito, Natsumi, Kawakita, Noriaki, Kato, Hiroyuki S., Munakata, Toshiaki
Format: Artikel
Sprache:eng
Schlagworte:
Excitation
Free electrons
Graphite
Low energy electron diffraction
Low temperature
Molecular orbitals
Morphology
Orientation
Photoelectric emission
Room temperature
Substrates
Superstructures
Temperature
Temperature dependence
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Occupied and unoccupied electronic structures of submonolayer perylene (C20H12) on a graphite surface have been investigated using two-photon photoemission (2PPE) spectroscopy for two phases at room and low temperatures. Low energy electron diffraction measurements indicated that the molecules are disordered at room temperature and form a well-ordered superstructure below 180 K. In 2PPE, a specific unoccupied peak (Lx) was observed at around room temperature (>180 K) but not at low temperature (
ISSN:0021-9606
1089-7690
DOI:10.1063/1.5126373