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Large-Scale Hierarchically Structured Conjugated Polymer Assemblies with Enhanced Electrical Conductivity


  • We gratefully acknowledge support from the National Science Foundation (NSF CBET-1153660 and CMMI-1153663), Georgia Institute of Technology, and Key Laboratory of Computational Physical Sciences at Fudan University, Shanghai, China.


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Stripes on a plane: A set of highly ordered microscopic stripes (purple; see scheme) were produced over a large area by using controlled evaporative self-assembly in a cylinder-on-Si geometry of conjugated homopolymers or all-conjugated diblock copolymer (P3BHT). The crystallinity of the as-prepared assemblies of P3BHT was greatly improved following chloroform vapor annealing, resulting in a fourfold increase in electrical conductivity.