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

Journal Article · · Nano Research
 [1];  [2];  [2];  [3]
  1. Purdue Univ., West Lafayette, IN (United States); University of Illinois
  2. Univ. of Illinois, Urbana, IL (United States)
  3. Purdue Univ., West Lafayette, IN (United States)

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.

Research Organization:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Organization:
National Science Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
FG02-07ER46453; FG02-07ER46471
OSTI ID:
1876436
Journal Information:
Nano Research, Journal Name: Nano Research Journal Issue: 2 Vol. 2; ISSN 1998-0124
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

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All‐Carbon Thin‐Film Transistors as a Step Towards Flexible and Transparent Electronics journal October 2016
A Review of Carbon Nanotube- and Graphene-Based Flexible Thin-Film Transistors journal March 2013
Random networks and aligned arrays of single-walled carbon nanotubes for electronic device applications journal October 2008
Highly uniform carbon nanotube nanomesh network transistors journal December 2014
Intrinsically stretchable and transparent thin-film transistors based on printable silver nanowires, carbon nanotubes and an elastomeric dielectric journal July 2015
Gigahertz integrated circuits based on carbon nanotube films journal December 2017
A review of fabrication and applications of carbon nanotube film-based flexible electronics journal January 2013
Single-walled carbon nanotube networks for flexible and printed electronics journal June 2015
Solution-processed thin films of semiconducting carbon nanotubes and their application to soft electronics journal February 2019