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Universität Heidelberg > Einrichtungen  >

Surface Science & Analytics - Prof. (apl.) Dr. Michael Zharnikov

Hybrid systems

Fabrication of metal films & NP assemblies on SAM surface

Adv. Mater. 17, 1745 (2005) and Adv. Func. Mater. 21, 4724 (2011)

A new method for the preparation of stable metal films on self-assembled monolayer substrates was designed, which allows manufacturing of ultrathin insulation layers in electronic and spintronic devices. The approach combines the functionalization and 2D-polymerization of the monomolecular film. In another project, we have synthesized monodisperse Co nanoparticles (NPs), stabilized by organic coating, and studied their immobilization on a variety of self-assembled monolayers (SAMs) bearing different terminal groups and on SAM-based chemical templates. The NPs exhibited pronounced ferromagnetic properties with a blocking temperature one of 380 K, which is unusual for the given NP size and is presumably related to the high magnetocrystalline anisotropy associated with the crystallographic perfection of the NPs.
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