Scanning Tunneling Microscopy and Spectroscopy of Liquid Crystal Thin Films

Abstract

This project aims to obtain topographical images of a liquid crystal material, 4'-pentyl-4-cyanobiphenyl (5CB), on a single layer of graphene on silicon carbide (SiC) using a scanning tunneling microscope (STM). Based on the high-resolution STM images, it is apparent that anchored 5CBs on the graphene layer is arranged in a single-row arrangement. The length of alkyl chains was also calculated (~7 A) using the STM images. It is in good agreement with what is reported in the literature, thus confirming our predicted molecular arrangement.

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Document Details

Document Type
Technical Report
Publication Date
Dec 15, 2021
Accession Number
AD1226193

Entities

People

  • Ahmed Muzammil
  • Asa Sappington
  • Pavithra Pathirathna

Organizations

  • Florida Institute of Technology

Tags

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Materials Science and Engineering.
  • Nanoscale Plasmonic Nanotechnology

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene