Development of Quantum dot LEDs

Type of project

Competition funded PhD projects

Supervisor(s)

Contact Dr Kevin Critchley to discuss this project further informally.

Project description

The next generation of LEDs will incorporate quantum dots (QDs). QDs have a tuneable band gap and efficient luminesce properties making them idea candidates for LEDs. QDs are currently being used in display devices for colour conversion, but in this project we aim to focus on direct emission (hole-electron recombination) from the QDs- so called QD-LEDs.

Secondly, we will use ‘soft’ fabrication methods to reduce the need for expensive processing facilities.

Thirdly, we will be engineering the quantum dots to the maximise efficiency whilst also using materials that are non-toxic and environmentally friendly. The focus of this PhD will be the experimental work associated with device design, assembly, and characterisation. The characterisation will make use of state of the art electron microscopy and spectroscopy, which will be addressed from the nanoscale through to the macroscale. More broadly the experimental work will be used to obtain parameters for the device computer simulation, which in turn will inform the device optimisation.

We will work with a variety of fabrication methods such as spin coating, spray coating, and various forms of microprinting. The work will be performed in collaboration with the University of Granada, Spain and therefore it is expected that the student will spend some significant periods of the PhD in Spain.

Entry requirements

Applications are invited from candidates with or expecting a minimum of a UK upper second class honours degree (2:1), and/or a Master's degree in a relevant engineering or science degree.

How to apply

Formal applications for research degree study should be made online through the university's website. Please state clearly in the research information second that the PhD you wish to be considered for is 'Development of Quantum dot LEDs' as well as Dr Kevin Critchley as your proposed supervisor.

If English is not your first language, you must provide evidence that you meet the University's minimum English Language requirements.

We welcome scholarship applications from all suitably-qualified candidates, but UK black and minority ethnic (BME) researchers are currently under-represented in our Postgraduate Research community, and we would therefore particularly encourage applications from UK BME candidates. All scholarships will be awarded on the basis of merit.