Highly temperature-tolerant p-type carbon nanotube transistor doped with 1,4,5,8,9,11-hexaazatriphenylenehexacarbonitrile

Yuki Matsunaga; Jun Hirotani; Haruka Omachi

doi:10.1063/5.0087868

journal article·2022-04-01Open access

Highly temperature-tolerant p-type carbon nanotube transistor doped with 1,4,5,8,9,11-hexaazatriphenylenehexacarbonitrile

Yuki Matsunaga, Jun Hirotani, Haruka Omachi

AIP Advances· Volume 12· Issue 4

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Source abstract

Abstract

The development of chemical doping methods for carbon nanotubes (CNTs) is essential for various electronic applications. However, typical p-doping methods for CNT thin-film transistors (TFTs), using oxygen and water from the atmosphere, are quite sensitive to changes in the surrounding environment, and thus, their poor temperature tolerance is a critical problem during device fabrication. As a p-dopant for CNT–TFTs, we used 1,4,5,8,9,11-hexaazatriphenylenehexacarbonitrile (HATCN), which is a strong electron acceptor aromatic compound. The HATCN-doped CNT–TFTs exhibited p-type characteristics after exposure to a high-temperature environment of 200 °C, and prolonged heating did not degrade the p-doping performance of HATCN. In addition, stable p-type characteristics even under ambient conditions were obtained by encapsulating the surface of the device with a Parylene–Al2O3 bilayer.

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Research context

Nanomaterials Electronic materials

OpenAlex topics: Carbon Nanotubes in Composites · Organic Electronics and Photovoltaics · Graphene research and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Chemistry, Graduate School of Science, Nagoya University 1 , Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan

Department of Micro Engineering, Graduate School of Engineering, Kyoto University 2 , Kyotodaigaku-Katsura C3, Nishikyo-ku, Kyoto 615-8540, Japan

PRESTO, Japan Science and Technology Agency 3 , 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan

Research Center for Materials Science, Nagoya University 4 , Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan

Funding

Core Research for Evolutional Science and Technology · Precursory Research for Embryonic Science and Technology · Japan Society for the Promotion of Science · TOYOAKI SCHOLARSHIP FOUNDATION

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