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Macromolecular Chemistry I:

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Haberkorn, N.; Kim, S.; Kim, K.S.; Sommer, M.; Thelakkat, M.; Sohn, B.H.; Theato, P.: Template-Assisted Fabrication of Highly Ordered Interpenetrating Polymeric Donor/Acceptor Nanostructures for Photovoltaic Applications, Macromolecular Chemistry and Physics, 212(19), 2142-2150 (2011) -- DOI: 10.1002/macp.201100269
The template-assisted fabrication of well-ordered interpenetrating donor/acceptor nanostructures based on polymeric semiconductors on conductive substrates is reported. Arrays of free-standing crosslinked tetraphenylbenzidine based nanorods are fabricated utilizing sacrificial AAO templates. TEM confirms the obtained donor/acceptor nanostructure morphology. The embedded nanorods show no aggregation and collapse of the rods within the film. Photoluminescence measurements reveal a more than three fold improvement in photoluminescence quenching relative to the planar bilayer architecture. The approach offers a versatile all-solution-based technique for the fabrication of well-ordered bulk heterojunction films with a large donor/acceptor interface for the application in polymer/polymer photovoltaic devices
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