Organic electrochemical transistors based on a dielectrophoretically aligned nanowire array |
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Authors: | WooSeok Choi Taechang An Geunbae Lim |
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Affiliation: | (1) Department of Mechanical Engineering, POSTECH, 790-784 Pohang, Republic of Korea;(2) Division of Integrative Bioscience and Biotechnology, POSTECH, 790-784 Pohang, Republic of Korea |
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Abstract: | In this study, we synthesized an organic electrochemical transistor (OECT) using dielectrophoresis of a carbon nanotube-Nafion
(CNT-Nafion) suspension. Dielectrophoretically aligned nanowires formed a one-dimensional submicron bundle between triangular
electrodes. The CNT-Nafion composite nanowire bundles showed p-type semiconductor characteristics. The drain-source current
decreased with increasing gate voltage. The nanowire bundles showed potential as pH sensor because the drain-source current
ratio varied linearly according to the gate voltage in pH buffers. |
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Keywords: | |
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