Electronic transitions and resonance electron scattering measured by electron energy loss spectroscopy of lead phthalocyanine thin film

被引:15
作者
Salomon, E [1 ]
Papageorgiou, N [1 ]
Ferro, Y [1 ]
Layet, JM [1 ]
机构
[1] Univ Aix Marseille 1, CNRS, UMR 6633, Lab Phys Interact Ion & Mol, F-13397 Marseille 20, France
关键词
lead phthalocyanine; electron energy loss spectroscopy; organic semiconductors; molecular electronics;
D O I
10.1016/j.tsf.2004.02.024
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have measured the electronic transitions of a lead phthalocyanine thin film by means of optical absorption and reflection electron energy loss spectroscopy in the range from 1 to 20 eV We compare the optical absorption spectrum with the loss spectra and discuss their similarity. We identify the loss structures and we report a new absorption band at 10 eV. In addition we report that the inelastic electron scattering from the lower energy pi-->pi* transition and from the C-H stretching vibrational mode show energy-dependent structure, characteristic of resonance scattering via temporary negative ion states. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:259 / 264
页数:6
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