My research project
Quantum Dot Loaded Nanocomposite Plastic Scintillators
Exciton confinement within nanoparticle quantum dots can result in electrical and optical properties not exhibited within bulk material of the same composition. Quantum dot emission is tunable based on the composition and particle size thus within plastic scintillators they can act as a high-Z dopant and wavelength shifter. This project investigates loading cadmium-free quantum dots in polyvinyl toluene (PVT) based plastic to enhance scintillation properties such as peak emission brightness and wavelength. Cadmium-free quantum dots are less toxic, brightness, and offer a Stokes shift large enough for negligible self-absorption. Loaded plastic scintillators and the quantum dots have been characterised through techniques such as energy-dispersive X-ray spectroscopy, optical absorption, photoluminescence, X-ray luminescence, and gamma spectroscopy.
University roles and responsibilities
- Radiation and Medical Physics Postgraduate Representative (2018-21)