Polaron tunneling in copolymers under external electric fields
Source abstract
Abstract
Abstract Polaron tunneling is studied in xPA/nPPP/xPA (polyacetylene (PA), poly(p-phenylene) (PPP)) triblock copolymer, which has a well–barrier–well structure. The chain is modeled by a modified tight-binding Hamiltonian with an external electric field. It is found that there exists a threshold value of the external field for the polaron to tunnel through the middle barrier. The critical tunneling electric field mainly depends upon the length of the PPP segment.
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Research context
OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Molecular Junctions and Nanostructures
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References (27)
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