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Proceedings Paper

Spin properties of interfaces with organic semiconductors studied by spin- and time-resolved two-photon photoemission
Author(s): Mirko Cinchetti; Kathrin Koffler; Sabine Steil; Nicolas Großmann; Martin Aeschlimann
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Paper Abstract

We review our recent work in the field of organic spintronics, and show that the spin- and time-resolved two-photon photoemission (STR-2PPE) technique can be used to obtain quantitative information about the spin-dependent properties of hybrid organic-inorganic interfaces, as well as about the spin-dependent transport in organic semiconductors. In addition, we present STR-2PPE measurements performed on the Co-copper phthalocyanine (CuPc) system at different temperatures to investigate the microscopic processes repsonsible for the spin-polarization decay in organic semiconductors and at interfaces with such materials. We found no significant temperature dependence of the spin-injection efficiency across the Co-CuPc interface as well as of the spin-polarization decay length in CuPc.

Paper Details

Date Published: 21 February 2011
PDF: 8 pages
Proc. SPIE 7937, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV, 79370M (21 February 2011); doi: 10.1117/12.876459
Show Author Affiliations
Mirko Cinchetti, Univ. of Kaiserslautern (Germany)
Kathrin Koffler, Univ. of Kaiserslautern (Germany)
Sabine Steil, Univ. of Kaiserslautern (Germany)
Nicolas Großmann, Univ. of Kaiserslautern (Germany)
Martin Aeschlimann, Univ. of Kaiserslautern (Germany)

Published in SPIE Proceedings Vol. 7937:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV
Kong-Thon Tsen; Jin-Joo Song; Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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