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Valence band fine structure of copper phthalocyanine thin films: Effect of molecular orientation
Author(s) -
Toader Teodor,
Gavrila Gianina,
Braun Walter,
Ivanco Jan,
Zahn Dietrich R. T.
Publication year - 2009
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200945141
Subject(s) - valence (chemistry) , copper , thin film , valence band , molecular orbital , band gap , copper phthalocyanine , atomic orbital , electronic band structure , chemistry , electronic structure , molecular physics , chemical physics , materials science , phthalocyanine , analytical chemistry (journal) , computational chemistry , condensed matter physics , molecule , optoelectronics , nanotechnology , physics , organic chemistry , quantum mechanics , electron , chromatography
The electronic structure of highly‐ordered copper phthalocyanine (CuPc) thin films is unravelled. The deconvolution of the well‐resolved valence band spectra allowed an extraction of energy levels of particular molecular orbitals in the low binding energy part of the π‐band, an approach which is often neglected in the data analysis. Quantitative analysis of the incidence photon energy dependence of the particular orbitals was exerted to address their character in terms of the contribution of constituent atoms. The line shape of the valence band was found to be closely related to the molecular orientation in the films. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)