Polymer-sorted (6,5) single-walled carbon nanotubes for solution-processed low-voltage flexible microelectronics

Francesca Bottacchi; Luisa Petti; Florian Späth; Imge Namal; Gerhard Tröster; Tobias Hertel; Thomas D. Anthopoulos

doi:10.1063/1.4921078

Polymer-sorted (6,5) single-walled carbon nanotubes for solution-processed low-voltage flexible microelectronics

Francesca Bottacchi, Luisa Petti, Florian Späth, Imge Namal, Gerhard Tröster, Tobias Hertel, Thomas D. Anthopoulos^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

We report on low operating voltage transistors based on polymer-sorted semiconducting (6,5) single-walled carbon nanotube (SWNT) networks processed from solution at room temperature. The (6,5) SWNTs were separated from the as-received carbon nanotubes mixture using a polyfluorene-based derivative as the sorting and dispersing polymer agent. As-prepared devices exhibit primarily p-type behavior with channel current on/off ratio >10³ and hole mobility ≈2cm² V^-1 s^-1. These transistor characteristics enable realization of low-voltage unipolar inverters with wide noise margins and high signal gain (>5). Polymer/(6,5) SWNT transistors were also fabricated on free-standing polyimide foils. The devices exhibit even higher hole mobility (≈8cm² V^-1 s^-1) and on/off ratios (>10⁴) while remaining fully functional when bent to a radius of 4mm.

Original language	English (US)
Article number	193302
Journal	Applied Physics Letters
Volume	106
Issue number	19
DOIs	https://doi.org/10.1063/1.4921078
State	Published - May 11 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 AIP Publishing LLC.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.4921078

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title = "Polymer-sorted (6,5) single-walled carbon nanotubes for solution-processed low-voltage flexible microelectronics",

abstract = "We report on low operating voltage transistors based on polymer-sorted semiconducting (6,5) single-walled carbon nanotube (SWNT) networks processed from solution at room temperature. The (6,5) SWNTs were separated from the as-received carbon nanotubes mixture using a polyfluorene-based derivative as the sorting and dispersing polymer agent. As-prepared devices exhibit primarily p-type behavior with channel current on/off ratio >103 and hole mobility ≈2cm2 V-1 s-1. These transistor characteristics enable realization of low-voltage unipolar inverters with wide noise margins and high signal gain (>5). Polymer/(6,5) SWNT transistors were also fabricated on free-standing polyimide foils. The devices exhibit even higher hole mobility (≈8cm2 V-1 s-1) and on/off ratios (>104) while remaining fully functional when bent to a radius of 4mm.",

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doi = "10.1063/1.4921078",

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AU - Bottacchi, Francesca

AU - Petti, Luisa

AU - Späth, Florian

AU - Namal, Imge

AU - Tröster, Gerhard

AU - Hertel, Tobias

AU - Anthopoulos, Thomas D.

PY - 2015/5/11

Y1 - 2015/5/11

N2 - We report on low operating voltage transistors based on polymer-sorted semiconducting (6,5) single-walled carbon nanotube (SWNT) networks processed from solution at room temperature. The (6,5) SWNTs were separated from the as-received carbon nanotubes mixture using a polyfluorene-based derivative as the sorting and dispersing polymer agent. As-prepared devices exhibit primarily p-type behavior with channel current on/off ratio >103 and hole mobility ≈2cm2 V-1 s-1. These transistor characteristics enable realization of low-voltage unipolar inverters with wide noise margins and high signal gain (>5). Polymer/(6,5) SWNT transistors were also fabricated on free-standing polyimide foils. The devices exhibit even higher hole mobility (≈8cm2 V-1 s-1) and on/off ratios (>104) while remaining fully functional when bent to a radius of 4mm.

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Polymer-sorted (6,5) single-walled carbon nanotubes for solution-processed low-voltage flexible microelectronics

Abstract

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ASJC Scopus subject areas

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