Abstract— While data from various devices as Internet of Things (IoT) are scattered and isolated as silos at present, some expect that hundreds of billions of devices will be connected through the Internet by the early 2020s. To prevent radio interference of huge amounts of data, it is necessary to develop ubiquitous wearable devices that enable constant retention and sharing of data. We aim to establish the basic packaging technology for realizing the semiconductive thin films and circuits that make up such electronic devices, and we fabricated thin films using highly crystalline single-walled carbon nanotubes (HC-SWCNTs) by a wet-coating process and evaluated their electrical properties in this study. Our research has developed a technology to disperse HC-SWCNTs without impairing their crystallinity and succeeded in fabricating thin films from a dispersion liquid of HC-SWCNTs obtained by this technology. We also evaluated the Hall mobility of these thin films and found that a high Hall mobility of 1,000 cm2/Vs can be achieved by controlling the crystallinity. On the basis of the results of this study, we will pursue our research to establish a technology for packaging electronic circuits that take full advantage of the electronic properties of HC-SWCNTs by a wet-coating process.
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