4.5 Article

Spin-coated conductive polymer film resistivity measurement using the TLM method

Journal

SYNTHETIC METALS
Volume 156, Issue 11-13, Pages 838-842

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2006.05.003

Keywords

conductive polymer; resistivity; contact resistance; transmission line method; organic thin film transistor

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Organic conductors such as PEDOT:PSS are commonly used for the fabrication of OLEDs or OTFr transistors. Conductivity measurement is mandatory to improve both material composition and process parameters, and to allow device and circuit modeling. Film deposition using spincoating on circular TLM electrode structures is a straightforward method for extracting both the film resistance and the contact resistivity, providing an accurate model is used. A practical measurement procedure is described in detail and applied to the measurement of PEDOTTSS solutions. (c) 2006 Elsevier BN. All rights reserved.

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