Open vacancies

The funded PhD and Masters places in my group have now been allocated, however opportunities still exist for self-funding PhD students.  Please get in touch if interested.

My research concerns the fabrication, processing, characterisation and modelling of low-dimensional materials, including metal oxide nanowires and nanosheets, and graphene. I also design, characterise and model novel electronic devices, particularly those that make use of low-dimensional physical properties, or suffer from confinement or leakage issues due to small sizes. See for example or

Working within the Centre for Nanohealth at Swansea we are able to fabricate a wide range of nanomaterials. Our characterisation equipment includes ultra high vacuum four point probe (with in-situ scanning electron microscopy), scanning auger microscopy, and x-ray photoelectron spectroscopy.

I have supervised many PhD, masters, and other research students on these areas – some are listed below. Interested potential students are welcome to email for a current list of vacancies.

In 2007 I was awarded a Royal Academy of Engineering Research Fellowship to model scanning probe measurements of electronic devices. My research has been funded by the Royal Academy of Engineering, EPSRC and A4B (Welsh Government/EU).

I’ve given many invited public engagement talks on nanotechnology including at the Swansea Science Café, the University of the Third Age, the Royal Society of Chemistry and an IET ‘Living History’ event.

I also have a postgraduate qualification in higher education teaching (PGCTHE), am a Fellow of the Higher Education Academy, a member of the Institute of Engineering and Technology and am a member of the Institute of Physics. I am currently the Level One co-ordinator for Electronic and Electrical Engineering.

Areas of Expertise

  • Nanotechnology
  • Electrical and structural characterisation of low-dimensional materials
  • Metal oxide nanowires and nanosheets
  • Characterisation of electrostatic manipulation of graphene ripples and deformation
  • Scanning probe microscopy and modelling of SPM
  • Design characterisation and modelling of electronic devices including optoelectronic devices


  1. Barnett, C., Jackson, G., Jones, D., Lewis, A., Welsby, K., Evans, J., McGettrick, J., Watson, T., Maffeis, T., Dunstan, P., Barron, A., Cobley, R. Investigation into the effects of surface stripping ZnO nanosheets Nanotechnology 29 16 165701
  2. Alyobi, M., Barnett, C., Rees, P., Cobley, R. Modifying the electrical properties of graphene by reversible point-ripple formation Carbon 143 762 768
  3. Alyobi, M., Barnett, C., Cobley, R. Effects of Thermal Annealing on the Properties of Mechanically Exfoliated Suspended and On-Substrate Few-Layer Graphene Crystals 7 11 349
  4. Barnett, C., Kryvchenkova, O., Smith, N., Kelleher, L., Maffeis, T., Cobley, R. The effects of surface stripping ZnO nanorods with argon bombardment Nanotechnology 26 41 415701
  5. Kryvchenkova, O., Abdullah, I., Macdonald, J., Elliott, M., Anthopoulos, T., Lin, Y., Igić, P., Kalna, K., Cobley, R., Igic, P. Nondestructive Method for Mapping Metal Contact Diffusion in In2O3 Thin-Film Transistors ACS Applied Materials & Interfaces 8 38 25631 25636

See more...


  • EG-142 Instrumentation and Control

    This module introduces the fundamentals of sensors, measurement, instrumentation and control in typical engineering applications.

  • EG-143 Digital Design

    To introduce the fundamentals of logic design methods and, implement, test and compare these designs using simulators.

  • EGNM01 Probing at the Nanoscale

    This module provides an introduction to the analysis techniques used in nanotechnology, and general surface science, including scanning probe microscopy, electron and diffraction techniques.


  • Investigating the Effects of Gold Nanoparticle Deposition on Optical Biosensors for the Detection of Thrombin. (current)

    Other supervisor: Prof Richard Palmer
  • Deposition and Characterisation of Silicon Oxynitride Dielectric Films for Waveguide Applications (current)

    Other supervisor: Dr Matthew Elwin
  • Application of nanoclusters in neuromorphic computing devices. (current)

    Other supervisor: Prof Richard Palmer
  • Mica as an ultra-flat substrate for studying the electromechanical response of graphene (current)

    Other supervisor: Dr Thierry Maffeis
  • In situ STM analysis of clusters produced by the Matrix Assembly Cluster Source (MACS) (current)

    Other supervisor: Prof Richard Palmer
  • Synthesis and Controlled Bubble Deposition ZnO Nanowires for Scale-up Applications (awarded 2020)

    Other supervisor: Dr Thierry Maffeis
  • Interfaces and Junctions in Nanoscale ZnO and InAs transistors structures (awarded 2019)

    Other supervisor: Prof Karol Kalna
  • 'Local probe electrostatic manipulation of graphene: a study of the electronic and mechanical properties of rippled graphene sheets' (awarded 2017)

    Other supervisor: Dr Thierry Maffeis