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Measurement of surface potential and adhesion with Kelvin Probe Force Microscopy

  • Hao Zhang
  • , Danish Hussain
  • , Xianghe Meng
  • , Jianmin Song
  • , Hui Xie
  • Harbin Institute of Technology

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

Abstract

We report a Kelvin Probe Force Microscope (KPFM), which can scan surface potential and adhesion. Single-pass pulsed force mode is proposed, to measure topography, contact potential difference (CPD) and adhesion force. For each measurement point, the tip perform an approach and retract from the sample. Therefore, the averaging effect which is an issue in amplitude modulation (AM)-KPFM, is greatly reduced. In addition, it has advantage of mechanical characterization of the sample at the same time as compare to frequency modulation (FM)-KPFM and AM-KPFM. Electrical and adhesion force of few-layer graphene on the n-doped silicon have been measured. The results show that the performance of proposed KPFM is better than AM-KPFM in measuring CPD while frequency modulation (FM)-KPFM has higher CPD resolution due to being sensitive to force gradient. The electrostatically caused adhesion errors in measuring adhesion force are compensated by the kelvin testing loop.

Original languageEnglish
Title of host publication2016 International Conference on Manipulation, Automation and Robotics at Small Scales, MARSS 2016
EditorsSinan Haliyo, Albert Sill, Stephane Regnier, Sergej Fatikow
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509015108
DOIs
StatePublished - 6 Sep 2016
Event1st International Conference on Manipulation, Automation and Robotics at Small Scales, MARSS 2016 - Paris, France
Duration: 18 Jul 201621 Jul 2016

Publication series

Name2016 International Conference on Manipulation, Automation and Robotics at Small Scales, MARSS 2016

Conference

Conference1st International Conference on Manipulation, Automation and Robotics at Small Scales, MARSS 2016
Country/TerritoryFrance
CityParis
Period18/07/1621/07/16

Keywords

  • Kelvin probe force microscopy
  • pulsed force
  • surface potential
  • work function

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