DPhil Projects

Up-scaling graphene manufacturing to meet target device specifications
Dr. A.A. Koos, Professor N. Grobert

For graphene to become industrially viable und useful for technological applications large scale production of high-quality graphene must be developed. This project will investigate different routes to manufacturing highest grade graphene and the feasibility of up-scaling production. State of the art characterisation techniques will be employed for quality control, and close collaboration with internationally leading industries will form an integral part of the project.

Development of novel wet chemical techniques towards dedicated nanoparticles manufacturing
Dr. F. Dillon, Professor N. Grobert

Nanomaterials' properties are highly depended on their atomic structure and composition. This project will focus on the synthesis of dedicated nanoparticles defined properties. The student will investigate the influence of various parameters on particle size, shape, concentration and composition. Experiments will involve wet-chemical techniques in conjunction with state-of-the-art electron microscopy techniques. This project is essential to the group and will be an integral part of the ongoing research activities. It will be carried out in close collaboration with Dr K Moh, Prof E Arzt (Leibniz Institute for New Materials Saarbruecken, Germany), and industrial partners.

Novel routes to manufacturing layered inorganic nanomaterials
Dr. F. Dillon, Dr. R. Nicholls, Professor N. Grobert

Cabon nanotubes, have attracted increasingly more attention due to their outstanding properties in recent years. Concurrently, other 1D nanomaterials such as, inorganic nanowires and nanotubes of other layered materials, such as MoS2, WS2, BN, have been explored. Recently, new techniques for the precise structural control of WS2 nanomaterials were developed in house. Larger laboratory scale production, however, is still scarce and needs to be developed in order to make these novel nanomaterials viable for further characterisation, manipulation and application. This project will be focusing on the development of novel routes to inorganic 1D nanomaterials using chemical vapour deposition techniques. In this project the student will work closely with other members of the group and the samples produced by the student will be an integral part of a collaborative project with Dr Michael B Johnston (Department of Physics) and Dr Kylie Vincent (Department of Chemistry). It is envisaged to publish the findings in a peer reviewed journal and conference participation will be encouraged.


Graphene ribbons for nanoelectronics
Dr. A.A. Koos, Professor N. Grobert

Controlling the structure and hence properties of nanomaterials is essential for their successful implementation in devices. This project will focus on the generation of graphene ribbons and their detailed characterisation using state-of-the-art in-situ characterisation techniques.


Imaging and spectroscopy of doped carbon nanomaterials
Prof P D Nellist, Prof N Grobert, Dr J R Yates, Dr R J Nicholls
The very small (~0.1 nm) beam widths available in the scanning transmission electron microscope allow for extremely high resolution imaging and spectroscopy of materials. Such an approach is extremely powerful for investigating carbon-based nanostructures, such as carbon nanotubes or graphene, that contain heteroatoms (e.g. nitrogen, boron and phosphorous). The incorporation of heteroatoms can be used to modify the growth processes of such materials and to control their response to mechanical deformation or electrical transport. By combining imaging and spectroscopy of such materials with simulations of bonding and structure using density functional theory calculations, we aim to further understand the mechanisms by which heteroatoms can modify the properties of carbon nanostructures.

Hierarchical nanostructures for energy applications Dr. F. Dillon, Dr. A.A. Koos, Professor N. Grobert

This project will aim to develop fast, facile, and inexpensive routes to manufacturing hierarchical inorganic nanostructures for energy applications. Various production techniques and combinations of these will be explored including hydrothermal methods, chemical vapour deposition techniques, and wet chemistry.

Making and manipulating metal nanowires inside carbon nanotubes Professor N Grobert

Ferromagnetic nanowires have attracted much interest and are widely used across different disciplines, including biology and medicine. In preliminary experiments, ferromagnetic nanoparticles and -wires have proven to be highly efficient for manipulating nano- and micro-scale objects. Recently it has been shown that carbon nanotubes (CNTs) can be filled during growth with pure metals and alloys simply by varying catalyst concentration. The carbon coating prevents nanowire oxidation making them easy to handle.

This project is aimed at the production of metal-filled carbon nanotubes, their structural characterisation using state-of the art analytical electron microscopy. The project will be carried out in close collaboration with Professor Toru Maekawa (Bio-Nano Electronics Research Centre, Toyo University, Japan). The candidate will have the opportunity to interact with researchers based at the Bio-Nano Electronic Research Centre and will be participating at the 21st Century's Centre of Excellence Programme on Bioscience and Nanotechnology.