Bio-fabrication of nanomesh channels of single-walled carbon nanotubes for locally gated field-effect transistors

Hye Hyeon Byeon, Woo Chul Lee, Wonbin Kim, Seong Keun Kim, Woong Kim, Hyunjung Yi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Single-walled carbon nanotubes (SWNTs) are one of the promising electronic components for nanoscale electronic devices such as field-effect transistors (FETs) owing to their excellent device characteristics such as high conductivity, high carrier mobility and mechanical flexibility. Localized gating gemometry of FETs enables individual addressing of active channels and allows for better electrostatics via thinner dielectric layer of high k-value. For localized gating of SWNTs, it becomes critical to define SWNTs of controlled nanostructures and functionality onto desired locations in high precision. Here, we demonstrate that a biologically templated approach in combination of microfabrication processes can successfully produce a nanostructured channels of SWNTs for localized active devices such as local bottom-gated FETs. A large-scale nanostructured network, nanomesh, of SWNTs were assembled in solution using an M13 phage with strong binding affinity toward SWNTs and micrometer-scale nanomesh channels were defined using negative photolithography and plasma-etching processes. The bio-fabrication approach produced local bottom-gated FETs with remarkably controllable nanostructures and successfully enabled semiconducting behavior out of unsorted SWNTs. In addition, the localized gating scheme enhanced the device performances such as operation voltage and I on/I off ratio. We believe that our approach provides a useful and integrative method for fabricating electronic devices out of nanoscale electronic materials for applications in which tunable electrical properties, mechanical flexibility, ambient stability, and chemical stability are of crucial importance.

Original languageEnglish
Article number025304
JournalNanotechnology
Volume28
Issue number2
DOIs
Publication statusPublished - 2017 Jan 13

Fingerprint

Carbon Nanotubes
Single-walled carbon nanotubes (SWCN)
Field effect transistors
Fabrication
Equipment and Supplies
Nanostructures
Bacteriophage M13
Microtechnology
Bacteriophages
Plasma etching
Microfabrication
Carrier mobility
Chemical stability
Photolithography
Static Electricity
Electrostatics
Electric properties
Electric potential

Keywords

  • bio-fabrication
  • field-effect transistors
  • local bottom-gate (LBG) geometry
  • M13 phage
  • nanomesh
  • singlewalled carbon nanotubes

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Bio-fabrication of nanomesh channels of single-walled carbon nanotubes for locally gated field-effect transistors. / Byeon, Hye Hyeon; Lee, Woo Chul; Kim, Wonbin; Kim, Seong Keun; Kim, Woong; Yi, Hyunjung.

In: Nanotechnology, Vol. 28, No. 2, 025304, 13.01.2017.

Research output: Contribution to journalArticle

Byeon, Hye Hyeon ; Lee, Woo Chul ; Kim, Wonbin ; Kim, Seong Keun ; Kim, Woong ; Yi, Hyunjung. / Bio-fabrication of nanomesh channels of single-walled carbon nanotubes for locally gated field-effect transistors. In: Nanotechnology. 2017 ; Vol. 28, No. 2.
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