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Theory and practice of “Striping” for improved ON/OFF Ratio in carbon nanonet thin film transistors

Nano Research volume 2, pages 167–175 (2009)Cite this article

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Abstract

A new technique to reduce the influence of metallic carbon nanotubes (CNTs)—relevant for large-scale integrated circuits based on CNT-nanonet transistors—is proposed and verified. Historically, electrical and chemical filtering of the metallic CNTs have been used to improve the ON/OFF ratio of CNT-nanonet transistors; however, the corresponding degradation in ON-current has made these techniques somewhat unsatisfactory. Here, we abandon the classical approaches in favor of a new approach based on relocation of asymmetric percolation threshold of CNT-nanonet transistors by a technique called “striping”; this allows fabrication of transistors with ON/OFF ratio >1000 and ON-current degradation no more than a factor of 2. We offer first principle numerical models, experimental confirmation, and renormalization arguments to provide a broad theoretical and experimental foundation of the proposed method.

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Authors and Affiliations

  1. School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana, 47907-1285, USA

    Ninad Pimparkar & Muhammad A. Alam

  2. Department of Chemistry, University of Illinois, Urbana, IL, 61801, USA

    Qing Cao & John A. Rogers

  3. Materials and Science Engineering, University of Illinois, Urbana, IL, 61801, USA

    John A. Rogers

  4. Electrical and Computer Engineering, University of Illinois, Urbana, IL, 61801, USA

    John A. Rogers

  5. Beckman Institute, University of Illinois, Urbana, IL, 61801, USA

    John A. Rogers

  6. Frederick and Seitz Materials Res. Lab, University of Illinois, Urbana, IL, 61801, USA

    John A. Rogers

Authors
  1. Ninad Pimparkar
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  2. Qing Cao
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  3. John A. Rogers
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  4. Muhammad A. Alam
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Corresponding authors

Correspondence to John A. Rogers or Muhammad A. Alam.

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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License ( https://creativecommons.org/licenses/by-nc/2.0 ), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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Pimparkar, N., Cao, Q., Rogers, J.A. et al. Theory and practice of “Striping” for improved ON/OFF Ratio in carbon nanonet thin film transistors. Nano Res. 2, 167–175 (2009). https://doi.org/10.1007/s12274-009-9013-z

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  • DOI: https://doi.org/10.1007/s12274-009-9013-z

Keywords

  • Nanonet
  • Carbon nanotube
  • flexible electronics
  • thin film transistors