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Graphene Characterization Facilities and Services

The Hub has broad range of characterization facilities to assess the quality and properties of prepared graphene materials and graphene products that are available to our partners and external users. Typical properties of graphene that needs to be characterized include:

Structure and morphology: size of sheets, number of layers, crystal structure, defects etc.

Chemical compositions: oxygen level, functional groups, doped elements, and reactivity

Electrical Conductivity: conductivity, resistivity, electrical charge/discharge, and electrochemical properties

Surface area/interfacial properties: volume/area, reactivity, porosity, hydrophobicity/hydrophilicity

Purity: total carbon, graphitic carbon, trace elements

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Graphene characterization facilities

The Hub is equipped with all required facilities for  characterizations of graphene and 2D materials including SEM, TEM, EDAX, Raman, XRD, TGA, BET, PSD etc. that are located in several labs. As part of Hub research program we are developing new methods for simplified and low cost analysis of graphene bulk material.

Graphene quality control and characterisation methods

Graphs and images showing the different structural/physical characterizations as described in the list below.
  • Structural/Physical:
    • AFM: number of layers, size (SPOT)
    • TEM: number of layers, size, morphology (SPOT)
    • SEM: size, morphology (BULK)
    • Raman: number of layers, disorder, defects, quality (SPOT)
    • Light microscopy: size/morphology (BULK)
    • XRD: crystal structure (BULK)
    • PSD: size (BULK)
    • Contac angle: wettability (BULK)
  • Chemical/Purity:
    • XPS: oxygen level, doping, reactivity (SPOT)
    • EDAX: elemental, doping (SPOT)
    • FTIR: functional groups (BULK)
    • XRF: elemental analysis (purity) (BULK)
    • TGA: quality (carbon content) (BULK)
    • Thermal: (ash test, purity) (BULK)
  • Conductivity:
    • 4 probe: resistivity (BULK)
  • Surface area:
    • BET analyser: volumne/area, porosity (BULK)
    • Methylene blue adsorption (BULK)

Characterization instruments/facilities available

  • Scanning Electron Microscope (SEM) with EDAX  (Quanta, Philips, Hitachi, Adelaide Microscopy)
  • Transmission Electron Microscopes (TEM) FEI Titan Themis 80-200 and Philips CM200 TEM/STEM (Adelaide Microscopy
  • Scanning Near-Field Optical Microscope (SNOM) (Adelaide Microscopy)
  • Atomic Force Microscope (AFM) (Adelaide Microscopy)
  • Raman Instrument HORIBA Japan
  • BET analysis Belsorp (Belsorp, Japan)
  • XRD  Rigaku-Miniflex (Chem Eng)
  • XRF portable instrument
  • TGA instrument (TA instrument)
  • STA instrument (Netzsch) with FTIR
  • TGA instrument (Netzsch) with MS (Chem Eng)
  • FTIR spectrometer (Nicolet)
  • Particle size instruments (Nanosizer and Metasizer, Chem Eng)
  • Particle size instrument Nano Sight
  •  Electrochemical system (HCH 850)
  • Impedance spectrometer (Inphaze)
  • Contact angle measurement system
  • UV-ViS spectrophotometer, Agilent
  • Photoluminescence spectrophotometer, Horiba
  • Ocean fiber optic micro spectrometer (UV-VIS) (3)
  • Optical table with fiber optic spectrometers for RIFS optical biosensing
  • Optical Microscopes Eclipse (Nikon)
  • Confocal Microscopes (Adelaide Microscopy)
  • Stereo optical microscope (Motic)
  • Conductivity meter
  • pH meters
  • 4-probe conductivity meter
  • Digital microscope (2)
  • Ketley electrometer (2400)
ARC Research Hub for Graphene Enabled Industry Transformation
Address

North Terrace Campus
The University of Adelaide
SA 5005 AUSTRALIA

Contact

T: +61 8 8313 4646
michael.gilbert@adelaide.edu.au

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