Auger electrons are emitted after nuclear decay and are used for medical purposes. The number of Auger electrons generated per nuclear decay is not known accurately, a fact that  hinders medical applications.  This project aims to obtain a experimental estimate of the number of Auger electrons emitted per nuclear decay.

 

The project aims at establishing the possibilities of high-energy electron scattering in the analysis of thin layers. 

In this project, we will characterise actual device solar cell structures with electron microscopy techniques and seek to understand the microscopic effects behind the device performance and reliability

This is an all-encompassing program to integrate highly sophisticated theoretical modelling, material growth and nanofabrication capabilities to develop high performance semiconductor nanowire array solar cells. It will lead to understanding of the underlying photovoltaic mechanisms in nanowires and design of novel solar cell architectures.

This project aims to develop GaN-based semiconductor photoelectrodes for highly efficient solar to hydrogen generation by band bending and surface engineering at the semiconductor-electrolyte interface.

There is an imminent need to reduce our dependence on carbon-based fuels in order to minimize the
potential adverse outcomes associated with climate change. This project aims to develop an efficient means of producing clean hydrogen fuel by splitting water under sunlight using novel hematite based semiconductor electrodes for efficient solar hydrogen generation.

This projects combines ion implantation and deep level transient spectroscopy to study electrically active deep level defects in wide bandgap semiconductors.

Simplify nanowire solar cell fabrication by eliminating the need for p-n junctions to increase the ultimate device efficiency.

Development of novel composite nanopore membranes.

Scanning electron microscopy is a powerful tool for materials and this method is believed to correctly identify depletion regions in semiconductor devices. This project links the electron microscopy contrast  to the depletion regions measured by capacitance-voltage measurements in some devices with an aim to understanding the source of contrast. 

In this project, we will characterise actual device solar cell structures with electron microscopy techniques and seek to understand the microscopic effects behind the device performance and reliability

This project aims to develop GaN-based semiconductor photoelectrodes for highly efficient solar to hydrogen generation by band bending and surface engineering at the semiconductor-electrolyte interface.

Using bottom-up approaches to grow semiconductor nanowires for future optoelectronic and biophotonic devices

This projects combines ion implantation and deep level transient spectroscopy to study electrically active deep level defects in wide bandgap semiconductors.

Study the formation and stability of high energy ion tracks in minerals under controlled environments with importance for geological dating techniques.

The project aims at establishing the possibilities of high-energy electron scattering in the analysis of thin layers. 

Due to the large surface area to volume ratio in nanowires, surface defects could be detrimental for performance of nanowire optoelectronic devices. This project aims to develope effective passivation methods to reduce the surface recombination rate by passivating the surface states of nanowires.

This project will concentrate on developing metal contacts on nanowires for Hall measurements which will provide quantitative determination of the doping concentration and carrier mobilities in the nanowires, which is crucial to optimize performance of nanowire optoelectronic devices.

The equilibrium shape of voids or crystals is largely influenced by the total surface energies encompassing these 3D objects. This aim of this project is to extract the surface energies of different planes from transmission electron microscopy images of faceted voids and nanowires.

Development of nanowire LEDs for small, robust and highly portable UV sources.

Investigate the fascinating porous structures of ion irradiated GaSb and InSb

Uniform composition and tunability over the emission wavelength of ternary nanowires is an important challenge for nanowire growth. Growth of nanowires combined with a range of characterisation techniques including electron microscopy will be used for this project. PhD studentships currently available. 

Simplify nanowire solar cell fabrication by eliminating the need for p-n junctions to increase the ultimate device efficiency.

Development of novel composite nanopore membranes.

Scanning electron microscopy is a powerful tool for materials and this method is believed to correctly identify depletion regions in semiconductor devices. This project links the electron microscopy contrast  to the depletion regions measured by capacitance-voltage measurements in some devices with an aim to understanding the source of contrast. 

Utilising nanowire geometry to create visible wavelength nanoscale lasers with reduced footprint, higher efficiency and lower operating powers.

This is an all-encompassing program to integrate highly sophisticated theoretical modelling, material growth and nanofabrication capabilities to develop high performance semiconductor nanowire array solar cells. It will lead to understanding of the underlying photovoltaic mechanisms in nanowires and design of novel solar cell architectures.

Auger electrons are emitted after nuclear decay and are used for medical purposes. The number of Auger electrons generated per nuclear decay is not known accurately, a fact that  hinders medical applications.  This project aims to obtain a experimental estimate of the number of Auger electrons emitted per nuclear decay.

 

There is an imminent need to reduce our dependence on carbon-based fuels in order to minimize the
potential adverse outcomes associated with climate change. This project aims to develop an efficient means of producing clean hydrogen fuel by splitting water under sunlight using novel hematite based semiconductor electrodes for efficient solar hydrogen generation.

Develop and utilise computer simulations to analyse synchrotron based scattering from nano-sized objects.

Using bottom-up approaches to grow semiconductor nanowires for future optoelectronic and biophotonic devices

Semiconductor nanowires are emerging nano-materials with substantial opportunities for novel photonic and electronic device applications. This project aims at developing a new generation of high performance NW based photodetectors for a wide range of applications.

Study the formation and stability of high energy ion tracks in minerals under controlled environments with importance for geological dating techniques.

Developing nanoscale lasers with controlled direction of light emission for use in high density information processing.

The equilibrium shape of voids or crystals is largely influenced by the total surface energies encompassing these 3D objects. This aim of this project is to extract the surface energies of different planes from transmission electron microscopy images of faceted voids and nanowires.

Development of nanowire LEDs for small, robust and highly portable UV sources.

Investigate the fascinating porous structures of ion irradiated GaSb and InSb

Uniform composition and tunability over the emission wavelength of ternary nanowires is an important challenge for nanowire growth. Growth of nanowires combined with a range of characterisation techniques including electron microscopy will be used for this project. PhD studentships currently available. 

Utilising nanowire geometry to create visible wavelength nanoscale lasers with reduced footprint, higher efficiency and lower operating powers.

Semiconductor nanowires are emerging nano-materials with substantial opportunities for novel photonic and electronic device applications. This project aims at developing a new generation of high performance NW based photodetectors for a wide range of applications.

Due to the large surface area to volume ratio in nanowires, surface defects could be detrimental for performance of nanowire optoelectronic devices. This project aims to develope effective passivation methods to reduce the surface recombination rate by passivating the surface states of nanowires.

Developing nanoscale lasers with controlled direction of light emission for use in high density information processing.

This project will concentrate on developing metal contacts on nanowires for Hall measurements which will provide quantitative determination of the doping concentration and carrier mobilities in the nanowires, which is crucial to optimize performance of nanowire optoelectronic devices.

Develop and utilise computer simulations to analyse synchrotron based scattering from nano-sized objects.