Electronic structures in unoccupied states of Bi thin film studied with two-photon photoemission spectroscopy

2013 ◽  
Vol 267 ◽  
pp. 66-69
Author(s):  
Masaki Imamura ◽  
Shuji Fujimasa ◽  
Kazutoshi Takahashi ◽  
Isamu Yamamoto ◽  
Junpei Azuma ◽  
...  
Keyword(s):  
Thin Film ◽  
Electronic Structures ◽  
Photoemission Spectroscopy ◽  
Two Photon

Interfacial electronic structures at Fe/pentacene/Fe interfaces

2011 ◽  
Vol 1 (SRMS-7) ◽  
Author(s):  
Yu-Zhan Wang ◽  
Xing-Yu Gao ◽  
Andrew Wee ◽  
Dong-Chen Qi ◽  
Shi Chen
Keyword(s):  
Thin Film ◽  
Binding Energy ◽  
Chemical Reaction ◽  
Electronic Structures ◽  
Hole Injection ◽  
Photoemission Spectroscopy ◽  
Core Hole ◽  
Band Bending ◽  
Screening Effect ◽  
Injection Barrier

We investigate the interfacial electronic structures of the heterojunction Fe/pentacene/Fe on Cu(100) substrate, using synchrotron-based photoemission spectroscopy. No chemical reaction is observed at either Fe/pentacene or pentacene/Fe interface. The hole injection barrier was estimated to be about 0.95 eV between pentacene and under the Fe thin film. C K-edge NEXAFS revealed that the long axis of pentacene molecule was almost perpendicular to the surface plane. With increasing Fe thickness deposited on pentacene film, the pentacene's HOMO shifts to higher binding energy whereas the C 1s binding energy showed an interesting unusual behaviour due to the initial band bending gradually suppressed by the increasing core-hole screening effect.

Electronic structures of GaP(100) surface reconstructions probed with two-photon photoemission spectroscopy

2014 ◽  
Vol 89 (16) ◽  
Author(s):  
Philipp Sippel ◽  
Oliver Supplie ◽  
Matthias M. May ◽  
Rainer Eichberger ◽  
Thomas Hannappel
Keyword(s):  
Electronic Structures ◽  
Photoemission Spectroscopy ◽  
Two Photon ◽  
Surface Reconstructions

The observation of unoccupied quantum-well states in Bi thin film grown on Si(111) by two-photon photoemission spectroscopy

2011 ◽  
Vol 99 (24) ◽  
pp. 243101 ◽  
Author(s):  
Shuji Fujimasa ◽  
Masaki Imamura ◽  
Kazutoshi Takahashi ◽  
Isamu Yamamoto ◽  
Junpei Azuma ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Well ◽  
Photoemission Spectroscopy ◽  
Two Photon ◽  
Quantum Well States
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