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Inhomogeneous electronic structure of copper phthalocyanine film measured with microspot photoemission spectroscopy

Authors :
Nobuo Ueno
Toshiaki Munakata
Takuya Masuda
M. Aida
Takeharu Sugiyama
Source :
Applied Physics Letters. 85:3584-3586
Publication Year :
2004
Publisher :
AIP Publishing, 2004.

Abstract

We have applied photoemission microspectroscopy to copper phthalocyanine film grown on a polycrystalline copper with a lateral resolution of 0.3μm and an energy resolution of 30meV. The photoemission band due to the highest occupied molecular orbital peaked at the binding energy of either 1.6 or 1.2eV depending on the sample positions, while the work functions were 4.3 and 4.5eV for the respective positions. The band was intense when the binding energy was low. The results demonstrate that a large inhomogeneity exists in the interface electronic structure.

Details

ISSN :
10773118 and 00036951
Volume :
85
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........7fd46c1418e57e8439c9dea1737d3428
Full Text :
https://doi.org/10.1063/1.1808494