Field-Induced Carrier Generation in Conjugated Polymer Semiconductors for Dynamic, Asymmetric Junctions


  • Financial support is gratefully acknowledged from the Natural Sciences and Engineering Research Council (NSERC) of Canada, the Canada Foundation for Innovation (CFI), the Manitoba Research and Innovation Fund, and the University of Manitoba. The authors also acknowledge the Manitoba Regional Materials and Surface Characterization Facility for access to XPS and Dr. Sergei Rudenja for performing XPS analysis. Support for contributions from RGP and MSF was provided in part from the Canada Research Chairs Program. RGP and JHZ contributed equally to this work.


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A functioning dynamic memory device has been created using a polypyrrole composite material that contains immobilized anions and highly mobile cations in the form of a thin film spanning two metal electrodes in an interdigitated electrode array configuration. Dynamic asymmetric electronic behavior based on the movement of charge in response to the application of a field is demonstrated. The material system described has significant advantages for application in nanometer-scale electronics.