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Imaging local transport property within MoS2 transistors by scanning gate microscopy

  • Masahiro Matsunaga
  • , Ayaka Higuchi
  • , Guanchen He
  • , Jonathan P. Bird
  • , Yuichi Ochiai
  • , Nobuyuki Aoki
  • Chiba University
  • Japan Science and Technology Agency

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Using scanning gate microscopy (SGM), we study local transport property of molybdenum disulfide (MoS2) transistors. The transistors were fabricated using domain-free monolayer-MoS2 crystals grown by chemical vapor deposition (CVD). We observed two different types of SGM responses in different transistors. One is observed along the contact edge and the other is observed within MoS2 channel. The former one is described as visualization of an injection barrier formed by ohmic contact. On the other hand, the latter one implies that there is a barrier at a boundary of two regions having a different electrical property. We will discuss these results including electron force microscopy and photoluminescence mapping in the presentation.

Original languageEnglish
Title of host publication2016 Compound Semiconductor Week, CSW 2016 - Includes 28th International Conference on Indium Phosphide and Related Materials, IPRM and 43rd International Symposium on Compound Semiconductors, ISCS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509019649
DOIs
StatePublished - Aug 1 2016
Event2016 Compound Semiconductor Week, CSW 2016 - Toyama, Japan
Duration: Jun 26 2016Jun 30 2016

Publication series

Name2016 Compound Semiconductor Week, CSW 2016 - Includes 28th International Conference on Indium Phosphide and Related Materials, IPRM and 43rd International Symposium on Compound Semiconductors, ISCS 2016

Conference

Conference2016 Compound Semiconductor Week, CSW 2016
Country/TerritoryJapan
CityToyama
Period06/26/1606/30/16

Keywords

  • field effect transistor
  • Molybdeum disulfides
  • scanning gate microscopy

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