Preparation of Pentacene Organic Field Effect Transistors by a Wet Process and their Carrier Mobilities

Hiroaki Kubo; Jun-ichi Nishide; Hiroyuki Sasabe; Olaf Karthaus

doi:10.1380/ejssnt.2009.568

Regular Papers

Preparation of Pentacene Organic Field Effect Transistors by a Wet Process and their Carrier Mobilities

Hiroaki Kubo, Jun-ichi Nishide, Hiroyuki Sasabe, Olaf Karthaus

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Keywords: Electrical transport measurements, Crystallization, Electrical transport (conductivity, resistivity, mobility, etc.), Aromatics, Semiconducting films, Transistor

JOURNAL FREE ACCESS

2009 Volume 7 Pages 568-570

DOI https://doi.org/10.1380/ejssnt.2009.568

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Abstract

Dewetting-induced crystallization from hot trichlorobenzene solutions led to the formation of aligned pentacene microfibers or plates, depending on preparation conditions. Fibers with a length of several hundred micrometer and a width of less than one micrometer can be prepared. Bottom-contact field effect transistors with fibers that were oriented perpendicular to the source and drain electrodes showed carrier mobilities as high as 0.04 cm²/Vs. In comparison, plate-like pentacene gave corrected mobilities of up to 0.2 cm²/Vs. [DOI: 10.1380/ejssnt.2009.568]

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