My research is focussed in two areas;
on the characterisation of III-V semiconductor materials and devices, especially that containing Bismuth and on the understanding and development of avalanche photodiodes. The addition to Bismuth offers a possible route to extend the wavelength of many optical structures such as photodiodes and solar cells.

I use characterisation techniques such as X-ray double crystal diffraction and photoluminescence to study semiconductor structures containing bulk and quantum wells of GaAsBi and , and then correlate this to current-voltage, capacitance-voltage and photocurrent spectra of fabricated devices.