Electronic band-engineering of a dumbbell-shaped graphene nanoribbon by the application of uniaxial tensile strain

Jowesh Avisheik Goundar, Qinqiang Zhang, Ken Suzuki, Hideo Miura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Graphene nanoribbons (GNRs) narrower than 70 nm are theoretically known to exhibit semiconductive properties, and thus, they were applied to photovoltaic devices with multi-band gap. A dumbbell-shape GNR (DSGNR) structure which consisted of a narrow semiconductive GNR and wide metallic GNRs at both ends was found to show no Schottky barrier around the interface between those GNRs and its effective bandgap varied under the application of uniaxial tensile strain. The photovoltaic properties of the DSGNR structures were validated by the area-arrayed 40-nm wide DSGNR structure on a silicon substrate and the large piezoresistive effect, in other words, large change of bandgap was also validated by the DSGNR transferred on a soft PDMS substrate.

Original languageEnglish
Title of host publication2021 International Conference on Electronics Packaging, ICEP 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages147-148
Number of pages2
ISBN (Electronic)9784991191114
DOIs
Publication statusPublished - 2021 May 12
Event20th International Conference on Electronics Packaging, ICEP 2021 - Tokyo, Japan
Duration: 2021 May 122021 May 14

Publication series

Name2021 International Conference on Electronics Packaging, ICEP 2021

Conference

Conference20th International Conference on Electronics Packaging, ICEP 2021
Country/TerritoryJapan
CityTokyo
Period21/5/1221/5/14

Keywords

  • Band-engineering
  • First principle DFT calculation
  • graphene nanoribbon
  • Photosensitivity
  • Uniaxial tensile strain

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanics of Materials
  • Electronic, Optical and Magnetic Materials
  • Instrumentation

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