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Photoemission Study of Metal-Deposited p-Sexiphenyl Film

Published online by Cambridge University Press:  21 March 2011

E. Ito ,
N. Koch ,
H. Oji ,
H. Ishii ,
G. Leising  and
K. Seki
E. Ito
Affiliation:
Venture Business Laboratory, Nagoya University, Chikusa-ku, Nagoya, 464-8603, Japan, e-mail: [email protected]
N. Koch
Affiliation:
Institut für Festkörperphysik, Technische Universität Graz, A-8010, Graz, Austria
H. Oji
Affiliation:
Research Center for Materials Science, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan
H. Ishii
Affiliation:
Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan
G. Leising
Affiliation:
Institut für Festkörperphysik, Technische Universität Graz, A-8010, Graz, Austria
K. Seki
Affiliation:
Research Center for Materials Science, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya, 464-8602, Japan
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Abstract

Metal deposition on a p-sexiphenyl (6P) film was studied by ultraviolet photoelectron spectroscopy (UPS), metastable atom electron spectroscopy (MAES), and X-ray photoelectron spectroscopy (XPS). The deposited metals were Au, Mg, and several alkali metals (K, Na, Rb, and Cs). No chemical reaction between 6P and Au or Mg was observed in the measured spectra, while additional gap states appeared in the UPS and MAES spectra by deposition of the alkali metals. The diffusion of Au and Mg atoms into the 6P film was observed in the MAES spectra. We found the trend of the vacuum level shift is different between the systems of the 6P on the Au and its reversed systems (Au on the 6P film), suggesting the different formation of the interface depending on the deposition sequence.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 598: Symposium BB – Electrical, Optical, & Magenetic Properties...V , 1999 , BB3.65
Copyright
Copyright © Materials Research Society 1999

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