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Diverse Organic Field-Effect Transistor Sensor Responses from Two Functionalized Naphthalenetetracarboxylic Diimides and Copper Phthalocyanine Semiconductors Distinguishable Over a Wide Analyte Range

Authors

  • Weiguo Huang,

    1. Departments of Materials Science and Engineering and of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
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  • Jasmine Sinha,

    1. Departments of Materials Science and Engineering and of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
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  • Ming-Ling Yeh,

    1. Departments of Materials Science and Engineering and of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
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  • Josué F. Martínez Hardigree,

    1. Departments of Materials Science and Engineering and of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
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  • Rachel LeCover,

    1. Departments of Materials Science and Engineering and of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
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  • Kalpana Besar,

    1. Departments of Materials Science and Engineering and of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
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  • Ana María Rule,

    1. Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, 615 North Wolfe Street, Baltimore, MD 21205, USA
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  • Patrick N. Breysse,

    1. Department of Environmental Health Sciences, Bloomberg School of Public Health, Johns Hopkins University, 615 North Wolfe Street, Baltimore, MD 21205, USA
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  • Howard E. Katz

    Corresponding author
    1. Departments of Materials Science and Engineering and of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA
    • Departments of Materials Science and Engineering and of Chemistry, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218, USA.
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Abstract

Naphthalenetetracarboxylic diimide derivatives (octyl “8” NTCDI, dimethylaminopropyl “DMP” NTCDI) and copper phthalocyanine (CuPc) are used to form a diverse organic field-effect transistor (OFET) sensor array. CuPc and 8-NTCDI are p-channel and n-channel semiconductors, respectively, showing expected and opposing responses to analytes. DMP-NTCDI, on the other hand, because of its ionizable side chain, shows response directions and magnitudes that are not correlated to those of the other two. The result is a distinct response pattern and unambiguous recognition ability for individual analytes. The differences are even more dramatic if the time evolution of the responses is considered. The three-response patterns obtained from representative polar, nonpolar, acidic, and basic vapors are all different, showing the potential for this approach in rapid, low-cost electronic detection of volatile compounds.

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