Conductive Hybrid Films of Polyarylamine Electrochemically Oxidized with the Molecular Nanomagnet[Mn_(12)O_(12)(H_2O)_4-(C_6F_5COO)_(16)]

摘要

We have prepared a soluble hybrid organic-inorganic semiconductor based on the synergy between an arylamine polymer and the molecular nanomagnet [Mn_(12)O_(12)-(H_2O)_4(C_6F_5COO)_(16)]. At Mn_(12)PhF_5/hTPD ratios as low as 0.02, the conductivity of the hybrid films reaches values around 0.01 S cm~(-1). This high conductivity, in combination with the low amount of oxidized transport sites needed to obtain it, makes this material very suitable as a charge-transport material in organic solar cells and in organic light-emitting diodes. In terms of magnetism research, this hybrid material constitutes the first attempt to embed a Mn_(12) nanomagnet into a conducting polymer. The presence of the semiconducting polymer does not seem to affect the magnetism, as expected for isolated molecules. However, the high conductivities observed in this hybrid material imply that the Mn_(12) clusters play an important, although as yet not completely understood, role in the electrical properties of these hybrid materials.