Polypyrrole hexagonal microplates (PHMs) (50-100 �m long, 10-20 �m wide, and 0.8-1.2 �m thick) with a quasicrystalline structure and high electrical conductivity (up to 400 S/cm) are simply fabricated using single crystals of 4-sulfobenzoic acid monopotassium salt (KSBA) in aqueous medium. Moreover, the fabrication process described here differs strikingly from traditional methods such as template-free, soft template and hard template methods. The PHMs exhibit the improved pi-stacking and bipolaron structure. The strong pi-stacks among PPy rings of bipolaron structures lead to a high quasicrystalline structural order and the metallic conduction. Other single organic crystals that can act as dopants could also be grown using this approach, which will also enable the fabrication of complex micro/nanostructures on organic single crystals

Organic single-crystal surface-induced polymerization of polypyrrole microstructures

239th National Meeting (2010)

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