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Energy Level Alignment and Interactions at Potential Contacts for Spin Injection into Organic Semiconductors
Author(s) -
Grobosch Mandy,
Dörr Katrin,
Gangineni Ramesh B.,
Knupfer Martin
Publication year - 2009
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200800240
Subject(s) - materials science , organic semiconductor , x ray photoelectron spectroscopy , semiconductor , magnetic semiconductor , deposition (geology) , ferromagnetism , ultraviolet , optoelectronics , ultraviolet photoelectron spectroscopy , nanotechnology , condensed matter physics , nuclear magnetic resonance , physics , paleontology , sediment , biology
The present study provides the interface electronic properties between La 0.7 Sr 0.3 MnO 3 and two archetype organic semiconductors, CuPc and α ‐6T using a combined X‐ray‐ and ultraviolet photoelectron spectroscopy. La 0.7 Sr 0.3 MnO 3 is a ferromagnetic metal and can be used to inject spin‐polarized current into organic semiconductors. The energy level alignment depends on the cleaning procedure that is applied to the La 0.7 Sr 0.3 MnO 3 surface prior to deposition of the organic semiconductor.