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Issue 32, 2012
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Low variability with high performance in thin-film transistors of semiconducting carbon nanotubes achieved by shortening tube lengths

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Abstract

Extremely low variability with excellent device performances in a SWCNT-TFT array has been demonstrated in SWCNT-TFTs fabricated by using a semiconducting ink of short SWCNTs with an average length of 340 nm; the field-effect mobility of 3.9 ± 0.45 cm2 V−1 s−1, on/off ratio from 105 to 106, and hysteresis of ≈0.5 V. AFM observations revealed that the nonionic surfactant, Brij 700, adopted for dispersing SWCNTs during their extraction, causes the significant and homogeneous shortening of SWCNTs compared with sodium cholate, which is frequently used for the dispersion of SWCNTs as an ionic surfactant. Thus, it has been concluded that the shortening of SWCNTs in the dispersing process using the Brij 700 surfactant contributes to the observed uniformity of performance among the devices.

Graphical abstract: Low variability with high performance in thin-film transistors of semiconducting carbon nanotubes achieved by shortening tube lengths

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Publication details

The article was received on 24 Sep 2012, accepted on 12 Oct 2012 and first published on 12 Oct 2012


Article type: Paper
DOI: 10.1039/C2RA22272H
Citation: RSC Adv., 2012,2, 12408-12412
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    Low variability with high performance in thin-film transistors of semiconducting carbon nanotubes achieved by shortening tube lengths

    S. Ohmori, K. Ihara, F. Nihey, Y. Kuwahara and T. Saito, RSC Adv., 2012, 2, 12408
    DOI: 10.1039/C2RA22272H

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