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The Electronic Structure and the Energy Level Alignment at the Interface Between Organic Molecules and Metals

Published online by Cambridge University Press:  26 February 2011

Eiji Kawabe ,
Hiroyuki Yamane ,
Kenji Koizumi ,
Ryohei Sumii ,
Kaname Kanai ,
Yukio Ouchi  and
Kazuhiko Seki
Eiji Kawabe
Affiliation:
kawabe@mat.chem.nagoya-u.ac.jp, Nagoya University, Department of Chemistry, Graduate School of Science, Furo-cho, Chikusa-ku, Nagoya, 466-0803, Japan
Hiroyuki Yamane
Affiliation:
yamane@mat.chem.nagoya-u.ac.jp, Nagoya University, Department of Chemistry, Graduate School of Science, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
Kenji Koizumi
Affiliation:
koizumi@mat.chem.nagoya-u.ac.jp, Nagoya University, Department of Chemistry, Graduate School of Science, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
Ryohei Sumii
Affiliation:
sumii@mat.chem.nagoya-u.ac.jp, Nagoya University, Research Center for Materials Science, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
Kaname Kanai
Affiliation:
kaname@mat.chem.nagoya-u.ac.jp, Nagoya University, Department of Chemistry, Graduate School of Science, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
Yukio Ouchi
Affiliation:
ohuchi@chem.nagoya-u.ac.jp, Nagoya University, Department of Chemistry, Graduate School of Science, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
Kazuhiko Seki
Affiliation:
seki@mat.chem.nagoya-u.ac.jp, Nagoya University, Department of Chemistry, Graduate School of Science, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan
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Abstract

We investigated the electronic structure and the energy level alignment at the interfaces between perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) and metals (Au, Cu and Co) by ultraviolet photoelectron spectroscopy (UPS). In the case of PTCDA/Au interface, the apparent interface states and charge transfer (CT) states were not observed in its UPS spectra. In the case of PTCDA/Cu and Co interfaces, however, we found that the CT from metal to PTCDA occurred, and that the apparent CT states were observed at PTCDA/Cu interface.

Keywords

electronic structureorganicphotoemission
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 965: Symposium S – Organic Electronics – Materials, Devices and Applications , 2006 , 0965-S09-28
Copyright
Copyright © Materials Research Society 2007

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References

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