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Adv Mater. 2013 Jul 5;25(25):3419-25. doi: 10.1002/adma.201301138. Epub 2013 May 21.

High performance field-effect ammonia sensors based on a structured ultrathin organic semiconductor film.

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  • 1Physikalisches Institut and Center for Nanotechnology (CeNTech), Universität Münster, 48149 Münster, Germany.


High performance organic field-effect transistor (OFET)-based ammonia sensors are demonstrated with ultrathin (4-6 molecular layers) dendritic microstripes of an organic semiconductor prepared via dip-coating. These sensors exhibit high sensitivity, fast response/recovery rate, good selectivity, low concentration detection ability, and reliable reversibility, as well as stability. Such a performance represents great progress in the field of OFET-based sensors.

Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


ammonia; dip-coating; organic transistors; sensors; ultrathin microstripes

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