Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1443170 | Synthetic Metals | 2009 | 5 Pages |
Abstract
Electronic structure methods have been used to investigate conducting copolymers of 3,4-ethylenedioxythiophene (EDOT) and pyrrole (Py). The calculations show the planar anti conformation and the syn conformers have extended conjugation. In the anti conformation the EDOT-Py dimer is calculated to have a lower reorganization energy (0.390Â eV) than either homodimer (0.423Â eV EDOT; 0.455Â eV Py) and consequently is expected to have higher charge carrier mobility. The HOMO-LUMO gap of the copolymers is intermediate between the two homopolymers and for regular sequences varies monotonically as a function of the monomer content.
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Authors
Stephen A. Fossey, Ferdinando F. Bruno, Jayant Kumar, Lynne A. Samuelson,