Article Title

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

Authors

Ninad Pimparkar, School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907-1285, USA
Qing Cao, Frederick and Seitz Materials Res. Lab, University of Illinois, Urbana, IL 61801, USA
John A. Rogers, Frederick and Seitz Materials Res. Lab, University of Illinois, Urbana, IL 61801, USA
Muhammad A. Alam, School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907-1285, USA

Keywords

Nanonet, Carbon nanotube, flexible electronics, thin film transistors

Abstract

A new technique to reduce the influence of metallic carbon nanotubes (CNTs) relevant for large-scale integrated circuits based on CNT-nanonet transistorsis 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 allow fabrication of transistors with ON/OFF ratio >1000 and ON-current degradation no more than a factor of 2. We offer ? rst principle numerical models, experimental con? rmation, and renormalization arguments to provide a broad theoretical and experimental foundation of the proposed method.

Graphical Abstract

DOI

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

Publisher

Tsinghua University Press

Recommended Citation

Ninad Pimparkar,Qing Cao,John A. Rogers,Muhammad A. Alam, Theory and practice of “Striping” for improved ON/OFF Ratio in carbon nanonet thin film transistors. NanoRes.2009, 2: 167-175