2002/10/15 by David Abusch-Magder, Takao Someya, Abusch-Magder, David +12
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Conducting polymers and applications #Electrochemical Analysis and Applications #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Organic Electronics and Photovoltaics #Soft Condensed Matter (cond-mat.soft) #cond-mat.mes-hall #cond-mat.mtrl-sci #cond-mat.soft
paper · pdf · doi:10.48550/arxiv.cond-mat/0210332
15 pages, 3 figures, 650kB
arxiv created 2002/10/15 · openalex publication_date 2002/10/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this letter we describe electronic measurements of a conjugated polymer of phenylenevinylene (PPV) with electrode spacings down to 20 nm; all measurements are made in a gated transistor geometry. With rectangular electrodes we find that the current is fit by an exponential in the applied electric field for spacings between 50 nm and 2um. Based on this finding we conclude that the current is not injection limited, and is concentrated in a very small region; we also discuss possible transport mechanisms. The calculated mobility appears exponential in the electric field rather than in the square root of field. We also show fabricated triangular electrodes with spacings down to 5 nm, and discuss measurements with spacings down to 20 nm in which a single chain of polymer may dominate the conductance.