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Filled and empty states of Zn-TPP films deposited on Fe(001)-p(1×1)O
Gianlorenzo Bussetti1, Alberto Calloni1, Rossella Yivlialin1
1Department of Physics, Politecnico di Milano, p.za Leonardo da Vinci 32, 20133 Milano, Italy.
Abstract:
Zn-tetraphenylporphyrin (Zn-TPP) was deposited on a single layer of metal oxide, namely an Fe(001)-p(1×1)O surface. The filled and empty electronic states were measured by means of UV photoemission and inverse photoemission spectroscopy on a single monolayer and a 20 monolayer thick film. The ionization energy and the electron affinity of the organic film were deduced and the interface dipole was determined and compared with data available in the literature.
